/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 false -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 13:03:57,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:03:57,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:03:57,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:03:57,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:03:57,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:03:57,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:03:57,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:03:57,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:03:57,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:03:57,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:03:57,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:03:57,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:03:57,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:03:57,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:03:57,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:03:57,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:03:57,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:03:57,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:03:57,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:03:57,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:03:57,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:03:57,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:03:57,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:03:57,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:03:57,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:03:57,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:03:57,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:03:57,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:03:57,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:03:57,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:03:57,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:03:57,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:03:57,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:03:57,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:03:57,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:03:57,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:03:57,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:03:57,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:03:57,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:03:57,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:03:57,752 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 13:03:57,783 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:03:57,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:03:57,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:03:57,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:03:57,790 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:03:57,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:03:57,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:03:57,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:03:57,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:03:57,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:03:57,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:03:57,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:03:57,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:03:57,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:03:57,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:03:57,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:03:57,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:03:57,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:03:57,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:03:57,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:03:57,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:03:57,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:03:57,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:03:57,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:03:57,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:03:57,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:03:57,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:03:57,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:03:57,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:03:57,795 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 -> false [2020-08-21 13:03:58,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:03:58,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:03:58,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:03:58,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:03:58,133 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:03:58,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 13:03:58,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee40b5688/871ebc077a134a84b89f1b40e6228c3c/FLAG80bc6d89f [2020-08-21 13:03:58,778 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:03:58,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 13:03:58,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee40b5688/871ebc077a134a84b89f1b40e6228c3c/FLAG80bc6d89f [2020-08-21 13:03:59,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee40b5688/871ebc077a134a84b89f1b40e6228c3c [2020-08-21 13:03:59,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:03:59,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:03:59,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:03:59,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:03:59,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:03:59,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:03:59,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3451cfe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59, skipping insertion in model container [2020-08-21 13:03:59,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:03:59,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:03:59,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:03:59,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:03:59,759 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:03:59,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:03:59,929 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:03:59,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59 WrapperNode [2020-08-21 13:03:59,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:03:59,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:03:59,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:03:59,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:03:59,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:03:59,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:03:59,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:03:59,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:04:00,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:04:00,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:04:00,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (1/1) ... [2020-08-21 13:04:00,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:04:00,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:04:00,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:04:00,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:04:00,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (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 13:04:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:04:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:04:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 13:04:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 13:04:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 13:04:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 13:04:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 13:04:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 13:04:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 13:04:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:04:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 13:04:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 13:04:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 13:04:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 13:04:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 13:04:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 13:04:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 13:04:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 13:04:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 13:04:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 13:04:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 13:04:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 13:04:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 13:04:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 13:04:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 13:04:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 13:04:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 13:04:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 13:04:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 13:04:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 13:04:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 13:04:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 13:04:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 13:04:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 13:04:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 13:04:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 13:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 13:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 13:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 13:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 13:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 13:04:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 13:04:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 13:04:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 13:04:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 13:04:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 13:04:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 13:04:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 13:04:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 13:04:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 13:04:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 13:04:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 13:04:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 13:04:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 13:04:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 13:04:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 13:04:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 13:04:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 13:04:00,261 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 13:04:00,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 13:04:00,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 13:04:00,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 13:04:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 13:04:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 13:04:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 13:04:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 13:04:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 13:04:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 13:04:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 13:04:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 13:04:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 13:04:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 13:04:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 13:04:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 13:04:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 13:04:00,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 13:04:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 13:04:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 13:04:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 13:04:00,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 13:04:00,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 13:04:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 13:04:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 13:04:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 13:04:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 13:04:00,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 13:04:00,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 13:04:00,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 13:04:00,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 13:04:00,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 13:04:00,269 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 13:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:04:00,269 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 13:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 13:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 13:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 13:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 13:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 13:04:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 13:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 13:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 13:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 13:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 13:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 13:04:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 13:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 13:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 13:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 13:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 13:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 13:04:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 13:04:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:04:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 13:04:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:04:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 13:04:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 13:04:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 13:04:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 13:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 13:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 13:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 13:04:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 13:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 13:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 13:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 13:04:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 13:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 13:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 13:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 13:04:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 13:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 13:04:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 13:04:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 13:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 13:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 13:04:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 13:04:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 13:04:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 13:04:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 13:04:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 13:04:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 13:04:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 13:04:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 13:04:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 13:04:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 13:04:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 13:04:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 13:04:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 13:04:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 13:04:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 13:04:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 13:04:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 13:04:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:04:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:04:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 13:04:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:04:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:04:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:04:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:04:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 13:04:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:04:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 13:04:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 13:04:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:04:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 13:04:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 13:04:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 13:04:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 13:04:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 13:04:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 13:04:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 13:04:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 13:04:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 13:04:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 13:04:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 13:04:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 13:04:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 13:04:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 13:04:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 13:04:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 13:04:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 13:04:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 13:04:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 13:04:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 13:04:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 13:04:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 13:04:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 13:04:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 13:04:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 13:04:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 13:04:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 13:04:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 13:04:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 13:04:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:04:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:04:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:04:02,073 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:04:02,074 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 13:04:02,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:04:02 BoogieIcfgContainer [2020-08-21 13:04:02,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:04:02,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:04:02,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:04:02,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:04:02,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:03:59" (1/3) ... [2020-08-21 13:04:02,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef3a1e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:04:02, skipping insertion in model container [2020-08-21 13:04:02,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:03:59" (2/3) ... [2020-08-21 13:04:02,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef3a1e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:04:02, skipping insertion in model container [2020-08-21 13:04:02,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:04:02" (3/3) ... [2020-08-21 13:04:02,088 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 13:04:02,098 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:04:02,108 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:04:02,123 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:04:02,150 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:04:02,151 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:04:02,151 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:04:02,151 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:04:02,151 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:04:02,151 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:04:02,151 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:04:02,152 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:04:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 13:04:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 13:04:02,194 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:04:02,196 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 13:04:02,196 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:04:02,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:04:02,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 13:04:02,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:04:02,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038382634] [2020-08-21 13:04:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:04:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,171 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:04:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:04:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:04:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:04:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:04:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:04:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 13:04:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 13:04:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 13:04:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 13:04:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 13:04:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 13:04:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 13:04:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 13:04:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:04,688 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 13:04:04,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038382634] [2020-08-21 13:04:04,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:04:04,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 13:04:04,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069345129] [2020-08-21 13:04:04,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 13:04:04,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:04:04,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 13:04:04,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:04:04,726 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 13:04:06,860 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:04:08,374 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 13:04:09,622 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:04:10,821 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:04:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:04:16,571 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 13:04:16,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 13:04:16,574 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 13:04:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:04:16,592 INFO L225 Difference]: With dead ends: 573 [2020-08-21 13:04:16,592 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 13:04:16,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 13:04:16,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 13:04:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 13:04:16,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 13:04:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 13:04:16,763 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 13:04:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:04:16,764 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 13:04:16,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 13:04:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 13:04:16,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 13:04:16,768 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:04:16,768 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 13:04:16,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:04:16,769 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:04:16,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:04:16,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 13:04:16,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:04:16,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256544007] [2020-08-21 13:04:16,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:04:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,015 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:04:18,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:04:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:04:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:04:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:04:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:04:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:04:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 13:04:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 13:04:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 13:04:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 13:04:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 13:04:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 13:04:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 13:04:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:18,358 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 13:04:18,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256544007] [2020-08-21 13:04:18,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:04:18,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 13:04:18,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741196387] [2020-08-21 13:04:18,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 13:04:18,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:04:18,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 13:04:18,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:04:18,363 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 13:04:20,233 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:04:21,816 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 13:04:23,022 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:04:24,218 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:04:28,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:04:28,796 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 13:04:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 13:04:28,796 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 13:04:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:04:28,802 INFO L225 Difference]: With dead ends: 509 [2020-08-21 13:04:28,802 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 13:04:28,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 13:04:28,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 13:04:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 13:04:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 13:04:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 13:04:28,923 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 13:04:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:04:28,924 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 13:04:28,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 13:04:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 13:04:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 13:04:28,927 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:04:28,927 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 13:04:28,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:04:28,928 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:04:28,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:04:28,928 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 13:04:28,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:04:28,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902301792] [2020-08-21 13:04:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:04:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,211 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:04:30,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:04:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:04:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:04:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:04:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:04:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:04:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 13:04:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 13:04:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 13:04:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 13:04:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 13:04:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 13:04:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 13:04:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:30,534 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 13:04:30,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902301792] [2020-08-21 13:04:30,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:04:30,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 13:04:30,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638149883] [2020-08-21 13:04:30,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 13:04:30,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:04:30,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 13:04:30,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:04:30,538 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 13:04:32,406 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:04:33,987 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 13:04:35,171 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:04:36,337 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 13:04:40,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:04:40,592 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 13:04:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 13:04:40,592 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 13:04:40,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:04:40,596 INFO L225 Difference]: With dead ends: 509 [2020-08-21 13:04:40,596 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 13:04:40,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 13:04:40,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 13:04:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 13:04:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 13:04:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 13:04:40,705 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 13:04:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:04:40,706 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 13:04:40,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 13:04:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 13:04:40,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 13:04:40,709 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:04:40,709 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 13:04:40,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:04:40,710 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:04:40,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:04:40,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 13:04:40,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:04:40,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862390909] [2020-08-21 13:04:40,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:04:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,894 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:04:41,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:04:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:04:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:04:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:04:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:04:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:04:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:41,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 13:04:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 13:04:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 13:04:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 13:04:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 13:04:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 13:04:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 13:04:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:42,099 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 13:04:42,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862390909] [2020-08-21 13:04:42,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:04:42,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 13:04:42,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730622561] [2020-08-21 13:04:42,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:04:42,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:04:42,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:04:42,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:04:42,102 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 13:04:44,590 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:04:48,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:04:48,693 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 13:04:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:04:48,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 13:04:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:04:48,697 INFO L225 Difference]: With dead ends: 463 [2020-08-21 13:04:48,697 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 13:04:48,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:04:48,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 13:04:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 13:04:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 13:04:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 13:04:48,796 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 13:04:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:04:48,797 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 13:04:48,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:04:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 13:04:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 13:04:48,799 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:04:48,799 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 13:04:48,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:04:48,800 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:04:48,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:04:48,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 13:04:48,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:04:48,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150395265] [2020-08-21 13:04:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:04:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,027 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:04:50,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:04:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:04:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:04:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:04:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:04:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:04:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 13:04:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 13:04:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 13:04:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 13:04:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 13:04:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 13:04:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 13:04:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:50,260 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 13:04:50,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150395265] [2020-08-21 13:04:50,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:04:50,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 13:04:50,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394007245] [2020-08-21 13:04:50,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 13:04:50,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:04:50,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 13:04:50,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:04:50,263 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 13:04:52,290 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:04:53,467 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:04:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:04:57,345 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 13:04:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 13:04:57,345 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 13:04:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:04:57,348 INFO L225 Difference]: With dead ends: 495 [2020-08-21 13:04:57,349 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 13:04:57,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 13:04:57,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 13:04:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 13:04:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 13:04:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 13:04:57,480 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 13:04:57,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:04:57,481 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 13:04:57,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 13:04:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 13:04:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 13:04:57,484 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:04:57,484 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 13:04:57,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:04:57,484 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:04:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:04:57,485 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 13:04:57,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:04:57,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559324167] [2020-08-21 13:04:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:04:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,690 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 13:04:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:04:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:04:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:04:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 13:04:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:04:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 13:04:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 13:04:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:04:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 13:04:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 13:04:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 13:04:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 13:04:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:04:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 13:04:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 13:04:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:04:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 13:04:58,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559324167] [2020-08-21 13:04:58,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:04:58,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 13:04:58,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728099865] [2020-08-21 13:04:58,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 13:04:58,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:04:58,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 13:04:58,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:04:58,954 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states. [2020-08-21 13:05:00,400 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 13:05:01,582 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502