/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:52:11,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:52:11,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:52:11,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:52:11,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:52:11,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:52:11,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:52:11,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:52:11,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:52:11,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:52:11,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:52:11,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:52:11,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:52:11,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:52:11,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:52:11,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:52:11,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:52:11,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:52:11,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:52:11,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:52:11,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:52:11,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:52:11,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:52:11,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:52:11,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:52:11,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:52:11,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:52:11,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:52:11,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:52:11,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:52:11,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:52:11,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:52:11,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:52:11,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:52:11,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:52:11,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:52:11,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:52:11,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:52:11,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:52:11,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:52:11,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:52:11,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 13:52:11,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:52:11,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:52:11,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:52:11,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:52:11,325 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:52:11,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:52:11,325 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:52:11,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:52:11,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:52:11,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:52:11,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:52:11,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:52:11,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:52:11,327 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:52:11,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:52:11,327 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:52:11,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:52:11,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:52:11,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:52:11,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:52:11,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:52:11,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:52:11,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:52:11,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:52:11,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:52:11,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:52:11,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:52:11,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:52:11,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:52:11,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> log-additional-information=true; [2020-08-21 13:52:11,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:52:11,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:52:11,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:52:11,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:52:11,661 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:52:11,662 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 13:52:11,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d237a1e14/86a886240e5b4a32ace05d61d12438f6/FLAG2a68a83bb [2020-08-21 13:52:12,329 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:52:12,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 13:52:12,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d237a1e14/86a886240e5b4a32ace05d61d12438f6/FLAG2a68a83bb [2020-08-21 13:52:12,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d237a1e14/86a886240e5b4a32ace05d61d12438f6 [2020-08-21 13:52:12,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:52:12,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:52:12,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:52:12,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:52:12,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:52:12,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:52:12" (1/1) ... [2020-08-21 13:52:12,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:12, skipping insertion in model container [2020-08-21 13:52:12,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:52:12" (1/1) ... [2020-08-21 13:52:12,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:52:12,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:52:13,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:52:13,396 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:52:13,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:52:13,568 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:52:13,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13 WrapperNode [2020-08-21 13:52:13,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:52:13,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:52:13,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:52:13,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:52:13,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... [2020-08-21 13:52:13,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:52:13,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:52:13,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:52:13,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:52:13,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 13:52:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:52:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:52:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 13:52:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 13:52:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 13:52:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 13:52:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 13:52:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 13:52:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 13:52:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:52:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 13:52:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 13:52:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 13:52:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 13:52:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 13:52:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 13:52:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 13:52:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 13:52:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 13:52:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 13:52:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 13:52:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 13:52:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 13:52:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 13:52:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 13:52:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 13:52:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 13:52:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 13:52:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 13:52:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 13:52:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 13:52:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 13:52:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 13:52:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 13:52:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 13:52:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 13:52:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 13:52:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 13:52:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 13:52:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 13:52:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 13:52:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 13:52:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 13:52:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 13:52:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 13:52:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 13:52:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 13:52:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 13:52:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 13:52:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 13:52:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 13:52:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 13:52:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 13:52:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 13:52:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 13:52:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 13:52:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 13:52:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 13:52:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 13:52:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 13:52:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 13:52:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 13:52:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 13:52:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 13:52:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 13:52:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 13:52:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 13:52:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 13:52:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 13:52:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 13:52:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 13:52:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 13:52:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 13:52:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 13:52:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 13:52:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 13:52:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 13:52:13,869 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 13:52:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 13:52:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 13:52:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 13:52:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 13:52:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 13:52:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 13:52:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 13:52:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 13:52:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 13:52:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 13:52:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 13:52:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 13:52:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 13:52:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:52:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:52:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 13:52:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 13:52:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 13:52:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 13:52:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 13:52:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 13:52:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 13:52:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 13:52:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 13:52:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 13:52:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 13:52:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 13:52:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 13:52:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 13:52:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 13:52:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 13:52:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 13:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 13:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 13:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 13:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 13:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 13:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 13:52:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 13:52:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 13:52:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 13:52:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 13:52:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 13:52:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 13:52:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 13:52:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 13:52:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 13:52:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 13:52:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 13:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 13:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 13:52:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 13:52:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 13:52:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 13:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 13:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 13:52:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 13:52:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 13:52:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 13:52:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 13:52:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 13:52:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 13:52:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 13:52:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 13:52:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 13:52:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 13:52:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 13:52:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 13:52:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 13:52:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 13:52:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 13:52:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 13:52:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 13:52:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:52:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:52:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 13:52:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:52:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:52:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:52:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:52:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 13:52:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:52:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 13:52:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 13:52:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:52:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 13:52:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 13:52:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 13:52:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 13:52:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 13:52:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 13:52:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 13:52:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 13:52:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 13:52:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 13:52:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 13:52:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 13:52:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 13:52:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 13:52:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 13:52:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 13:52:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 13:52:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 13:52:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 13:52:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 13:52:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 13:52:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 13:52:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 13:52:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:52:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:52:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:52:15,917 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:52:15,918 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 13:52:15,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:52:15 BoogieIcfgContainer [2020-08-21 13:52:15,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:52:15,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:52:15,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:52:15,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:52:15,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:52:12" (1/3) ... [2020-08-21 13:52:15,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b0efbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:52:15, skipping insertion in model container [2020-08-21 13:52:15,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:52:13" (2/3) ... [2020-08-21 13:52:15,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b0efbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:52:15, skipping insertion in model container [2020-08-21 13:52:15,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:52:15" (3/3) ... [2020-08-21 13:52:15,933 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 13:52:15,944 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:52:15,953 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:52:15,968 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:52:15,996 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:52:15,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:52:15,997 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:52:15,997 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:52:15,997 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:52:15,997 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:52:15,997 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:52:15,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:52:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 13:52:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 13:52:16,056 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:52:16,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-08-21 13:52:16,058 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:52:16,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:52:16,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 13:52:16,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:52:16,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976084078] [2020-08-21 13:52:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:52:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,042 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:52:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:52:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:52:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:52:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:52:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:52:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 13:52:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 13:52:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 13:52:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 13:52:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 13:52:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 13:52:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 13:52:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 13:52:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 13:52:18,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976084078] [2020-08-21 13:52:18,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:52:18,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 13:52:18,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160771879] [2020-08-21 13:52:18,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 13:52:18,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:52:18,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 13:52:18,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:52:18,525 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 13:52:20,731 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:52:22,297 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 13:52:23,535 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:52:24,821 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:52:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:52:30,722 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 13:52:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 13:52:30,725 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 13:52:30,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:52:30,742 INFO L225 Difference]: With dead ends: 573 [2020-08-21 13:52:30,742 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 13:52:30,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 13:52:30,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 13:52:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 13:52:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 13:52:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 13:52:30,900 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 13:52:30,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:52:30,901 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 13:52:30,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 13:52:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 13:52:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 13:52:30,905 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:52:30,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-21 13:52:30,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:52:30,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:52:30,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:52:30,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 13:52:30,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:52:30,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715020432] [2020-08-21 13:52:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:52:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,166 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:52:32,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:52:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:52:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:52:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:52:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:52:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:52:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 13:52:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 13:52:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 13:52:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 13:52:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 13:52:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 13:52:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 13:52:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 13:52:32,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715020432] [2020-08-21 13:52:32,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:52:32,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 13:52:32,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354468527] [2020-08-21 13:52:32,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 13:52:32,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:52:32,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 13:52:32,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:52:32,597 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 13:52:34,465 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:52:36,148 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 13:52:37,376 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:52:38,608 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:52:43,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:52:43,130 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 13:52:43,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 13:52:43,131 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 13:52:43,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:52:43,136 INFO L225 Difference]: With dead ends: 509 [2020-08-21 13:52:43,136 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 13:52:43,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 13:52:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 13:52:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 13:52:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 13:52:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 13:52:43,248 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 13:52:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:52:43,248 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 13:52:43,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 13:52:43,249 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 13:52:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 13:52:43,251 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:52:43,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-21 13:52:43,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:52:43,252 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:52:43,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:52:43,253 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 13:52:43,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:52:43,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752256636] [2020-08-21 13:52:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:52:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,485 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:52:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:52:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:52:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:52:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:52:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:52:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:52:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 13:52:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 13:52:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 13:52:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 13:52:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 13:52:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 13:52:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 13:52:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 13:52:44,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752256636] [2020-08-21 13:52:44,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:52:44,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 13:52:44,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980671234] [2020-08-21 13:52:44,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 13:52:44,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:52:44,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 13:52:44,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:52:44,798 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 13:52:46,791 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:52:48,363 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 13:52:49,512 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:52:50,718 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:52:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:52:54,928 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 13:52:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 13:52:54,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 13:52:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:52:54,934 INFO L225 Difference]: With dead ends: 509 [2020-08-21 13:52:54,934 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 13:52:54,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 13:52:54,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 13:52:55,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 13:52:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 13:52:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 13:52:55,034 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 13:52:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:52:55,035 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 13:52:55,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 13:52:55,035 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 13:52:55,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 13:52:55,037 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:52:55,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-21 13:52:55,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:52:55,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:52:55,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:52:55,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 13:52:55,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:52:55,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087322978] [2020-08-21 13:52:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:52:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,392 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:52:56,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:52:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:52:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:52:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:52:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:52:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:52:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 13:52:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:52:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 13:52:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 13:52:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 13:52:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 13:52:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:52:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 13:52:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 13:52:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:52:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 13:52:56,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087322978] [2020-08-21 13:52:56,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:52:56,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 13:52:56,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956782127] [2020-08-21 13:52:56,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:52:56,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:52:56,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:52:56,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:52:56,653 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 13:52:59,009 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:53:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:53:03,154 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 13:53:03,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:53:03,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 13:53:03,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:53:03,157 INFO L225 Difference]: With dead ends: 463 [2020-08-21 13:53:03,157 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 13:53:03,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:53:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 13:53:03,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 13:53:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 13:53:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 13:53:03,254 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 13:53:03,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:53:03,255 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 13:53:03,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:53:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 13:53:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 13:53:03,257 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:53:03,258 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-21 13:53:03,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:53:03,258 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:53:03,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:53:03,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 13:53:03,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:53:03,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605366047] [2020-08-21 13:53:03,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:53:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,837 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:53:04,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:53:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:53:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:53:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:53:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:53:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:53:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:53:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:53:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:53:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:53:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:53:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 13:53:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:04,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:53:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:53:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 13:53:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 13:53:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 13:53:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 13:53:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:53:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 13:53:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 13:53:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:53:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 13:53:05,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605366047] [2020-08-21 13:53:05,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:53:05,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 13:53:05,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185670872] [2020-08-21 13:53:05,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 13:53:05,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:53:05,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 13:53:05,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:53:05,082 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 13:53:07,461 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:53:08,660 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:53:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:53:12,606 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 13:53:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 13:53:12,607 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 13:53:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:53:12,610 INFO L225 Difference]: With dead ends: 495 [2020-08-21 13:53:12,610 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 13:53:12,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 13:53:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 13:53:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 13:53:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 13:53:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 13:53:12,703 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 13:53:12,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:53:12,704 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 13:53:12,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 13:53:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 13:53:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 13:53:12,706 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:53:12,706 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-08-21 13:53:12,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:53:12,707 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:53:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:53:12,707 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 13:53:12,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:53:12,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019802206] [2020-08-21 13:53:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:53:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat