./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:45:18,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:45:18,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:45:18,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:45:18,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:45:18,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:45:18,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:45:18,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:45:18,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:45:18,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:45:18,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:45:18,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:45:18,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:45:18,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:45:18,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:45:18,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:45:18,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:45:18,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:45:18,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:45:18,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:45:18,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:45:18,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:45:18,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:45:18,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:45:18,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:45:18,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:45:18,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:45:18,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:45:18,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:45:18,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:45:18,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:45:18,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:45:18,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:45:18,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:45:18,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:45:18,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:45:18,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:45:18,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:45:18,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:45:18,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:45:18,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:45:18,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:45:18,561 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:45:18,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:45:18,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:45:18,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:45:18,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:45:18,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:45:18,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:45:18,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:45:18,563 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:45:18,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:45:18,563 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:45:18,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:45:18,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:45:18,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:45:18,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:45:18,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:45:18,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:45:18,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:45:18,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:45:18,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:45:18,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:45:18,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 [2021-12-28 00:45:18,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:45:18,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:45:18,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:45:18,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:45:18,822 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:45:18,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2021-12-28 00:45:18,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97451cdb7/8c15608e133543be8b16fc5b562d3202/FLAG538a2d09f [2021-12-28 00:45:19,377 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:45:19,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2021-12-28 00:45:19,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97451cdb7/8c15608e133543be8b16fc5b562d3202/FLAG538a2d09f [2021-12-28 00:45:19,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97451cdb7/8c15608e133543be8b16fc5b562d3202 [2021-12-28 00:45:19,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:45:19,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:45:19,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:45:19,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:45:19,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:45:19,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:45:19" (1/1) ... [2021-12-28 00:45:19,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8130e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:19, skipping insertion in model container [2021-12-28 00:45:19,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:45:19" (1/1) ... [2021-12-28 00:45:19,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:45:19,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:45:20,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2021-12-28 00:45:20,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:45:20,359 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:45:20,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2021-12-28 00:45:20,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:45:20,497 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:45:20,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20 WrapperNode [2021-12-28 00:45:20,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:45:20,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:45:20,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:45:20,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:45:20,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,576 INFO L137 Inliner]: procedures = 131, calls = 225, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1095 [2021-12-28 00:45:20,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:45:20,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:45:20,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:45:20,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:45:20,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:45:20,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:45:20,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:45:20,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:45:20,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (1/1) ... [2021-12-28 00:45:20,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:45:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:20,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 00:45:20,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 00:45:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:45:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:45:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-28 00:45:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-28 00:45:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:45:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:45:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-28 00:45:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-28 00:45:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:45:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:45:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:45:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:45:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:45:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:45:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:45:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:45:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-28 00:45:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-28 00:45:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:45:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:45:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:45:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-28 00:45:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-28 00:45:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-28 00:45:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-28 00:45:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:45:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:45:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:45:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:45:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:45:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:45:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:45:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:45:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:45:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:45:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:45:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:45:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:45:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-28 00:45:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-28 00:45:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:45:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:45:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:45:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:45:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:45:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:45:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:45:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:45:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:45:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:45:20,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:45:20,951 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:45:20,954 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:45:21,570 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:45:21,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:45:21,585 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:45:21,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:45:21 BoogieIcfgContainer [2021-12-28 00:45:21,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:45:21,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:45:21,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:45:21,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:45:21,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:45:19" (1/3) ... [2021-12-28 00:45:21,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c9c43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:45:21, skipping insertion in model container [2021-12-28 00:45:21,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:45:20" (2/3) ... [2021-12-28 00:45:21,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c9c43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:45:21, skipping insertion in model container [2021-12-28 00:45:21,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:45:21" (3/3) ... [2021-12-28 00:45:21,597 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2021-12-28 00:45:21,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:45:21,601 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:45:21,648 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:45:21,654 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 00:45:21,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:45:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 312 states have (on average 1.564102564102564) internal successors, (488), 317 states have internal predecessors, (488), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2021-12-28 00:45:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-28 00:45:21,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:21,713 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-28 00:45:21,713 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:21,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1736972103, now seen corresponding path program 1 times [2021-12-28 00:45:21,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:21,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532658489] [2021-12-28 00:45:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:21,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:21,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:21,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:45:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:45:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:45:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:45:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:45:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:45:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:45:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:45:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:45:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:45:22,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:22,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532658489] [2021-12-28 00:45:22,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532658489] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:22,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077110003] [2021-12-28 00:45:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:22,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:22,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:22,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:45:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:22,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:45:22,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:45:22,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:45:22,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077110003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:22,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:45:22,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:45:22,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186253903] [2021-12-28 00:45:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:22,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:45:22,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:22,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:45:22,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:45:22,627 INFO L87 Difference]: Start difference. First operand has 399 states, 312 states have (on average 1.564102564102564) internal successors, (488), 317 states have internal predecessors, (488), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:22,682 INFO L93 Difference]: Finished difference Result 600 states and 906 transitions. [2021-12-28 00:45:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:45:22,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-12-28 00:45:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:22,700 INFO L225 Difference]: With dead ends: 600 [2021-12-28 00:45:22,701 INFO L226 Difference]: Without dead ends: 392 [2021-12-28 00:45:22,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:45:22,710 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:22,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:45:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-12-28 00:45:22,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2021-12-28 00:45:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 306 states have (on average 1.5588235294117647) internal successors, (477), 310 states have internal predecessors, (477), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-28 00:45:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 600 transitions. [2021-12-28 00:45:22,762 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 600 transitions. Word has length 98 [2021-12-28 00:45:22,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:22,763 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 600 transitions. [2021-12-28 00:45:22,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:22,763 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 600 transitions. [2021-12-28 00:45:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 00:45:22,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:22,768 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-28 00:45:22,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:22,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-28 00:45:22,982 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:22,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:22,983 INFO L85 PathProgramCache]: Analyzing trace with hash 635129965, now seen corresponding path program 1 times [2021-12-28 00:45:22,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:22,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364047698] [2021-12-28 00:45:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:22,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:45:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:45:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:45:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:45:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:45:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:45:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:45:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:45:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:45:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:45:23,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:23,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364047698] [2021-12-28 00:45:23,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364047698] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:23,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256918533] [2021-12-28 00:45:23,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:23,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:23,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:23,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:45:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:45:23,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:45:23,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:45:23,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256918533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:23,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:45:23,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:45:23,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103398842] [2021-12-28 00:45:23,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:23,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:45:23,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:45:23,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:45:23,491 INFO L87 Difference]: Start difference. First operand 392 states and 600 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:23,530 INFO L93 Difference]: Finished difference Result 590 states and 884 transitions. [2021-12-28 00:45:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:45:23,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-12-28 00:45:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:23,533 INFO L225 Difference]: With dead ends: 590 [2021-12-28 00:45:23,533 INFO L226 Difference]: Without dead ends: 395 [2021-12-28 00:45:23,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:45:23,534 INFO L933 BasicCegarLoop]: 598 mSDtfsCounter, 1 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:23,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1194 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:45:23,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-12-28 00:45:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 394. [2021-12-28 00:45:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 308 states have (on average 1.5551948051948052) internal successors, (479), 312 states have internal predecessors, (479), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-28 00:45:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 602 transitions. [2021-12-28 00:45:23,554 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 602 transitions. Word has length 99 [2021-12-28 00:45:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:23,554 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 602 transitions. [2021-12-28 00:45:23,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 602 transitions. [2021-12-28 00:45:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:45:23,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:23,558 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:23,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:23,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-28 00:45:23,758 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:23,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:23,759 INFO L85 PathProgramCache]: Analyzing trace with hash -417428784, now seen corresponding path program 1 times [2021-12-28 00:45:23,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:23,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688432925] [2021-12-28 00:45:23,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:23,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:45:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:45:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:45:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:45:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:45:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:45:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:45:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:45:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:45:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:45:23,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:23,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688432925] [2021-12-28 00:45:23,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688432925] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:23,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258645524] [2021-12-28 00:45:23,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:23,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:23,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:23,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:23,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:45:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:45:24,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:45:24,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:45:24,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258645524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:24,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:45:24,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:45:24,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424934498] [2021-12-28 00:45:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:24,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:45:24,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:24,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:45:24,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:45:24,243 INFO L87 Difference]: Start difference. First operand 394 states and 602 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:24,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:24,288 INFO L93 Difference]: Finished difference Result 841 states and 1304 transitions. [2021-12-28 00:45:24,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:45:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2021-12-28 00:45:24,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:24,292 INFO L225 Difference]: With dead ends: 841 [2021-12-28 00:45:24,292 INFO L226 Difference]: Without dead ends: 474 [2021-12-28 00:45:24,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:45:24,295 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 142 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:24,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1169 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:45:24,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-12-28 00:45:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 466. [2021-12-28 00:45:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 366 states have (on average 1.5737704918032787) internal successors, (576), 370 states have internal predecessors, (576), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2021-12-28 00:45:24,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 727 transitions. [2021-12-28 00:45:24,324 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 727 transitions. Word has length 108 [2021-12-28 00:45:24,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:24,324 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 727 transitions. [2021-12-28 00:45:24,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:24,325 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 727 transitions. [2021-12-28 00:45:24,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-28 00:45:24,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:24,328 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:24,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:24,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:24,543 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash -307666848, now seen corresponding path program 1 times [2021-12-28 00:45:24,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:24,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775846171] [2021-12-28 00:45:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:24,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:45:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:45:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:45:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:45:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:45:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:45:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:45:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:45:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:45:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:45:24,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:24,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775846171] [2021-12-28 00:45:24,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775846171] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:24,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622234475] [2021-12-28 00:45:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:24,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:24,637 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:24,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:45:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:24,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:45:24,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:45:24,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:45:24,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622234475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:24,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:45:24,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:45:24,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765457210] [2021-12-28 00:45:24,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:24,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:45:24,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:24,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:45:24,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:45:24,997 INFO L87 Difference]: Start difference. First operand 466 states and 727 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:25,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:25,056 INFO L93 Difference]: Finished difference Result 923 states and 1444 transitions. [2021-12-28 00:45:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:45:25,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-12-28 00:45:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:25,060 INFO L225 Difference]: With dead ends: 923 [2021-12-28 00:45:25,060 INFO L226 Difference]: Without dead ends: 468 [2021-12-28 00:45:25,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:25,064 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 160 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:25,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2182 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:45:25,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-12-28 00:45:25,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2021-12-28 00:45:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 367 states have (on average 1.5722070844686649) internal successors, (577), 372 states have internal predecessors, (577), 76 states have call successors, (76), 23 states have call predecessors, (76), 24 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2021-12-28 00:45:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 730 transitions. [2021-12-28 00:45:25,089 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 730 transitions. Word has length 109 [2021-12-28 00:45:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:25,090 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 730 transitions. [2021-12-28 00:45:25,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 730 transitions. [2021-12-28 00:45:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:45:25,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:25,093 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-28 00:45:25,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:25,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:25,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1910613440, now seen corresponding path program 1 times [2021-12-28 00:45:25,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:25,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409143071] [2021-12-28 00:45:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:25,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:45:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:45:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:45:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:45:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:45:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:45:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:45:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:45:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:45:25,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:25,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409143071] [2021-12-28 00:45:25,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409143071] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:25,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965687840] [2021-12-28 00:45:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:25,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:25,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:25,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:25,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:45:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:25,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:45:25,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:45:25,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:45:25,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965687840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:25,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:45:25,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:45:25,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928325734] [2021-12-28 00:45:25,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:25,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:45:25,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:25,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:45:25,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:45:25,806 INFO L87 Difference]: Start difference. First operand 468 states and 730 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:25,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:25,860 INFO L93 Difference]: Finished difference Result 925 states and 1449 transitions. [2021-12-28 00:45:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:45:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2021-12-28 00:45:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:25,863 INFO L225 Difference]: With dead ends: 925 [2021-12-28 00:45:25,863 INFO L226 Difference]: Without dead ends: 470 [2021-12-28 00:45:25,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:45:25,864 INFO L933 BasicCegarLoop]: 589 mSDtfsCounter, 159 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:25,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2171 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:45:25,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-12-28 00:45:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2021-12-28 00:45:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 368 states have (on average 1.5706521739130435) internal successors, (578), 374 states have internal predecessors, (578), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-12-28 00:45:25,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 736 transitions. [2021-12-28 00:45:25,877 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 736 transitions. Word has length 110 [2021-12-28 00:45:25,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:25,877 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 736 transitions. [2021-12-28 00:45:25,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 736 transitions. [2021-12-28 00:45:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:45:25,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:25,879 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:25,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:26,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:26,097 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:26,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:26,097 INFO L85 PathProgramCache]: Analyzing trace with hash 352718914, now seen corresponding path program 1 times [2021-12-28 00:45:26,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:26,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049108329] [2021-12-28 00:45:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:26,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:45:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:45:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:45:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:45:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:45:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:45:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:45:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:45:26,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:26,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049108329] [2021-12-28 00:45:26,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049108329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:26,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:26,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:45:26,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683751611] [2021-12-28 00:45:26,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:26,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:45:26,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:26,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:45:26,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:45:26,192 INFO L87 Difference]: Start difference. First operand 470 states and 736 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:27,981 INFO L93 Difference]: Finished difference Result 1109 states and 1763 transitions. [2021-12-28 00:45:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:45:27,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2021-12-28 00:45:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:27,985 INFO L225 Difference]: With dead ends: 1109 [2021-12-28 00:45:27,986 INFO L226 Difference]: Without dead ends: 662 [2021-12-28 00:45:27,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:45:27,987 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 1460 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:27,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 1752 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 00:45:27,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-12-28 00:45:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 470. [2021-12-28 00:45:28,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 368 states have (on average 1.5706521739130435) internal successors, (578), 374 states have internal predecessors, (578), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2021-12-28 00:45:28,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 735 transitions. [2021-12-28 00:45:28,022 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 735 transitions. Word has length 111 [2021-12-28 00:45:28,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:28,023 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 735 transitions. [2021-12-28 00:45:28,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 735 transitions. [2021-12-28 00:45:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:45:28,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:28,025 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:28,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:45:28,025 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:28,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash -650914240, now seen corresponding path program 2 times [2021-12-28 00:45:28,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:28,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492425974] [2021-12-28 00:45:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:28,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:45:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:45:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:45:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:45:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:45:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:45:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:45:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:45:28,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:28,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492425974] [2021-12-28 00:45:28,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492425974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:28,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:28,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:45:28,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280261127] [2021-12-28 00:45:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:28,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:45:28,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:28,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:45:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:45:28,135 INFO L87 Difference]: Start difference. First operand 470 states and 735 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:29,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:29,807 INFO L93 Difference]: Finished difference Result 1111 states and 1766 transitions. [2021-12-28 00:45:29,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:45:29,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2021-12-28 00:45:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:29,810 INFO L225 Difference]: With dead ends: 1111 [2021-12-28 00:45:29,811 INFO L226 Difference]: Without dead ends: 664 [2021-12-28 00:45:29,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:45:29,813 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 1453 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:29,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1474 Valid, 1756 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-28 00:45:29,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-12-28 00:45:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 472. [2021-12-28 00:45:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 376 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2021-12-28 00:45:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 738 transitions. [2021-12-28 00:45:29,835 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 738 transitions. Word has length 112 [2021-12-28 00:45:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:29,836 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 738 transitions. [2021-12-28 00:45:29,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 738 transitions. [2021-12-28 00:45:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 00:45:29,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:29,839 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:29,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:45:29,839 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:29,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:29,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1604041335, now seen corresponding path program 1 times [2021-12-28 00:45:29,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:29,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613656290] [2021-12-28 00:45:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:29,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:45:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:45:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:45:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:45:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:45:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:45:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:45:29,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:29,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613656290] [2021-12-28 00:45:29,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613656290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:29,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:29,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:45:29,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921150706] [2021-12-28 00:45:29,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:29,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:45:29,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:45:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:45:29,936 INFO L87 Difference]: Start difference. First operand 472 states and 738 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:31,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:31,620 INFO L93 Difference]: Finished difference Result 1111 states and 1765 transitions. [2021-12-28 00:45:31,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 00:45:31,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2021-12-28 00:45:31,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:31,624 INFO L225 Difference]: With dead ends: 1111 [2021-12-28 00:45:31,624 INFO L226 Difference]: Without dead ends: 664 [2021-12-28 00:45:31,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-12-28 00:45:31,625 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 1457 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:31,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 1754 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-28 00:45:31,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-12-28 00:45:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 472. [2021-12-28 00:45:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 376 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2021-12-28 00:45:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 738 transitions. [2021-12-28 00:45:31,653 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 738 transitions. Word has length 113 [2021-12-28 00:45:31,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:31,654 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 738 transitions. [2021-12-28 00:45:31,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:45:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 738 transitions. [2021-12-28 00:45:31,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 00:45:31,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:31,656 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:31,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:45:31,656 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:31,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:31,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1631106937, now seen corresponding path program 1 times [2021-12-28 00:45:31,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:31,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374628785] [2021-12-28 00:45:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:31,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:45:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:45:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:45:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:45:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:45:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:45:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:45:31,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:31,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374628785] [2021-12-28 00:45:31,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374628785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:31,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:31,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:45:31,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351774193] [2021-12-28 00:45:31,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:31,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:45:31,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:31,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:45:31,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:45:31,809 INFO L87 Difference]: Start difference. First operand 472 states and 738 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:45:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:34,001 INFO L93 Difference]: Finished difference Result 1109 states and 1760 transitions. [2021-12-28 00:45:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:45:34,001 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2021-12-28 00:45:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:34,007 INFO L225 Difference]: With dead ends: 1109 [2021-12-28 00:45:34,007 INFO L226 Difference]: Without dead ends: 664 [2021-12-28 00:45:34,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:45:34,010 INFO L933 BasicCegarLoop]: 710 mSDtfsCounter, 1598 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 4570 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 5216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 4570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:34,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1598 Valid, 2140 Invalid, 5216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 4570 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 00:45:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-12-28 00:45:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 472. [2021-12-28 00:45:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 376 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-12-28 00:45:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 737 transitions. [2021-12-28 00:45:34,030 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 737 transitions. Word has length 113 [2021-12-28 00:45:34,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:34,030 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 737 transitions. [2021-12-28 00:45:34,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:45:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 737 transitions. [2021-12-28 00:45:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-28 00:45:34,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:34,033 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:34,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:45:34,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:34,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:34,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1548494279, now seen corresponding path program 2 times [2021-12-28 00:45:34,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:34,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475851672] [2021-12-28 00:45:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:34,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:45:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:45:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:45:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:45:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:45:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:45:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:45:34,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:34,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475851672] [2021-12-28 00:45:34,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475851672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:34,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:34,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:45:34,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723807441] [2021-12-28 00:45:34,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:34,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:45:34,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:34,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:45:34,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:45:34,188 INFO L87 Difference]: Start difference. First operand 472 states and 737 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:45:36,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:36,392 INFO L93 Difference]: Finished difference Result 1111 states and 1766 transitions. [2021-12-28 00:45:36,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:45:36,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2021-12-28 00:45:36,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:36,396 INFO L225 Difference]: With dead ends: 1111 [2021-12-28 00:45:36,396 INFO L226 Difference]: Without dead ends: 666 [2021-12-28 00:45:36,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:45:36,397 INFO L933 BasicCegarLoop]: 712 mSDtfsCounter, 1593 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:36,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1593 Valid, 2142 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 4644 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 00:45:36,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-12-28 00:45:36,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 474. [2021-12-28 00:45:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 378 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 27 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2021-12-28 00:45:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 743 transitions. [2021-12-28 00:45:36,421 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 743 transitions. Word has length 114 [2021-12-28 00:45:36,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:36,422 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 743 transitions. [2021-12-28 00:45:36,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:45:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 743 transitions. [2021-12-28 00:45:36,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-28 00:45:36,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:36,424 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-28 00:45:36,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 00:45:36,424 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1405878516, now seen corresponding path program 1 times [2021-12-28 00:45:36,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042802035] [2021-12-28 00:45:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:36,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:45:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:45:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:45:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:45:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:45:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:45:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-28 00:45:36,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:36,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042802035] [2021-12-28 00:45:36,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042802035] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:36,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513568864] [2021-12-28 00:45:36,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:36,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:36,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:36,539 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:36,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:45:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:36,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:45:36,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:36,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:45:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:37,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513568864] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:45:37,071 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:45:37,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-28 00:45:37,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898135927] [2021-12-28 00:45:37,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:45:37,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 00:45:37,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 00:45:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:45:37,073 INFO L87 Difference]: Start difference. First operand 474 states and 743 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:45:40,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:40,071 INFO L93 Difference]: Finished difference Result 2020 states and 3404 transitions. [2021-12-28 00:45:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 00:45:40,072 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2021-12-28 00:45:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:40,079 INFO L225 Difference]: With dead ends: 2020 [2021-12-28 00:45:40,079 INFO L226 Difference]: Without dead ends: 1577 [2021-12-28 00:45:40,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-28 00:45:40,081 INFO L933 BasicCegarLoop]: 945 mSDtfsCounter, 4262 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 5415 mSolverCounterSat, 1652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 4516 SdHoareTripleChecker+Invalid, 7067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1652 IncrementalHoareTripleChecker+Valid, 5415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:40,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4264 Valid, 4516 Invalid, 7067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1652 Valid, 5415 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-28 00:45:40,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2021-12-28 00:45:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 917. [2021-12-28 00:45:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 734 states have (on average 1.6158038147138964) internal successors, (1186), 742 states have internal predecessors, (1186), 155 states have call successors, (155), 23 states have call predecessors, (155), 27 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2021-12-28 00:45:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1517 transitions. [2021-12-28 00:45:40,136 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1517 transitions. Word has length 115 [2021-12-28 00:45:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:40,137 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1517 transitions. [2021-12-28 00:45:40,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:45:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1517 transitions. [2021-12-28 00:45:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 00:45:40,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:40,140 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:40,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:40,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:40,352 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:40,352 INFO L85 PathProgramCache]: Analyzing trace with hash 230281867, now seen corresponding path program 1 times [2021-12-28 00:45:40,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:40,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744978544] [2021-12-28 00:45:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:40,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:45:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:45:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:45:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:45:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:45:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:45:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:40,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:40,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744978544] [2021-12-28 00:45:40,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744978544] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:40,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:40,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:40,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667508365] [2021-12-28 00:45:40,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:40,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:40,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:40,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:40,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:40,438 INFO L87 Difference]: Start difference. First operand 917 states and 1517 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:41,701 INFO L93 Difference]: Finished difference Result 2371 states and 4012 transitions. [2021-12-28 00:45:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:41,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-28 00:45:41,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:41,709 INFO L225 Difference]: With dead ends: 2371 [2021-12-28 00:45:41,709 INFO L226 Difference]: Without dead ends: 1532 [2021-12-28 00:45:41,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:41,712 INFO L933 BasicCegarLoop]: 761 mSDtfsCounter, 1449 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:41,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1468 Valid, 1579 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2021-12-28 00:45:41,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1332. [2021-12-28 00:45:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1070 states have (on average 1.6317757009345795) internal successors, (1746), 1078 states have internal predecessors, (1746), 234 states have call successors, (234), 23 states have call predecessors, (234), 27 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2021-12-28 00:45:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 2245 transitions. [2021-12-28 00:45:41,776 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 2245 transitions. Word has length 118 [2021-12-28 00:45:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:41,777 INFO L470 AbstractCegarLoop]: Abstraction has 1332 states and 2245 transitions. [2021-12-28 00:45:41,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 2245 transitions. [2021-12-28 00:45:41,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 00:45:41,781 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:41,781 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:41,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:45:41,781 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:41,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash -62773104, now seen corresponding path program 1 times [2021-12-28 00:45:41,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:41,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81035322] [2021-12-28 00:45:41,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:41,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:45:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:45:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:45:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:45:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:45:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:45:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:41,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:41,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81035322] [2021-12-28 00:45:41,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81035322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:41,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:41,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:41,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129544323] [2021-12-28 00:45:41,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:41,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:41,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:41,853 INFO L87 Difference]: Start difference. First operand 1332 states and 2245 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:43,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:43,105 INFO L93 Difference]: Finished difference Result 3410 states and 5825 transitions. [2021-12-28 00:45:43,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:43,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-28 00:45:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:43,114 INFO L225 Difference]: With dead ends: 3410 [2021-12-28 00:45:43,114 INFO L226 Difference]: Without dead ends: 2209 [2021-12-28 00:45:43,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:43,118 INFO L933 BasicCegarLoop]: 749 mSDtfsCounter, 1447 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:43,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1465 Valid, 1555 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2021-12-28 00:45:43,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2009. [2021-12-28 00:45:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1628 states have (on average 1.6388206388206388) internal successors, (2668), 1636 states have internal predecessors, (2668), 353 states have call successors, (353), 23 states have call predecessors, (353), 27 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2021-12-28 00:45:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 3405 transitions. [2021-12-28 00:45:43,220 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 3405 transitions. Word has length 119 [2021-12-28 00:45:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:43,220 INFO L470 AbstractCegarLoop]: Abstraction has 2009 states and 3405 transitions. [2021-12-28 00:45:43,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 3405 transitions. [2021-12-28 00:45:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 00:45:43,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:43,230 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:43,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:45:43,231 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:43,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash -106020451, now seen corresponding path program 1 times [2021-12-28 00:45:43,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:43,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467811099] [2021-12-28 00:45:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:43,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:45:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:45:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:45:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:45:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:45:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:45:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:43,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:43,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467811099] [2021-12-28 00:45:43,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467811099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:43,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:43,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:43,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740841991] [2021-12-28 00:45:43,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:43,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:43,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:43,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:43,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:43,303 INFO L87 Difference]: Start difference. First operand 2009 states and 3405 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:44,586 INFO L93 Difference]: Finished difference Result 4995 states and 8604 transitions. [2021-12-28 00:45:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-28 00:45:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:44,601 INFO L225 Difference]: With dead ends: 4995 [2021-12-28 00:45:44,601 INFO L226 Difference]: Without dead ends: 3252 [2021-12-28 00:45:44,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:44,606 INFO L933 BasicCegarLoop]: 750 mSDtfsCounter, 1444 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:44,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 1555 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:44,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2021-12-28 00:45:44,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3052. [2021-12-28 00:45:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 2509 states have (on average 1.6444798724591472) internal successors, (4126), 2517 states have internal predecessors, (4126), 515 states have call successors, (515), 23 states have call predecessors, (515), 27 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2021-12-28 00:45:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 5203 transitions. [2021-12-28 00:45:44,760 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 5203 transitions. Word has length 120 [2021-12-28 00:45:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:44,761 INFO L470 AbstractCegarLoop]: Abstraction has 3052 states and 5203 transitions. [2021-12-28 00:45:44,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 5203 transitions. [2021-12-28 00:45:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 00:45:44,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:44,769 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:44,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:45:44,769 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:44,770 INFO L85 PathProgramCache]: Analyzing trace with hash 69321647, now seen corresponding path program 1 times [2021-12-28 00:45:44,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:44,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192970876] [2021-12-28 00:45:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:44,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:45:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:45:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:45:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:45:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:45:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:45:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:44,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:44,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192970876] [2021-12-28 00:45:44,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192970876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:44,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:44,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:44,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008193647] [2021-12-28 00:45:44,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:44,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:44,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:44,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:44,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:44,863 INFO L87 Difference]: Start difference. First operand 3052 states and 5203 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:46,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:46,263 INFO L93 Difference]: Finished difference Result 7509 states and 13019 transitions. [2021-12-28 00:45:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:46,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-28 00:45:46,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:46,282 INFO L225 Difference]: With dead ends: 7509 [2021-12-28 00:45:46,282 INFO L226 Difference]: Without dead ends: 4942 [2021-12-28 00:45:46,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:46,287 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1439 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:46,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 1561 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2021-12-28 00:45:46,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 4742. [2021-12-28 00:45:46,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4742 states, 3954 states have (on average 1.648457258472433) internal successors, (6518), 3962 states have internal predecessors, (6518), 760 states have call successors, (760), 23 states have call predecessors, (760), 27 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2021-12-28 00:45:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4742 states to 4742 states and 8111 transitions. [2021-12-28 00:45:46,551 INFO L78 Accepts]: Start accepts. Automaton has 4742 states and 8111 transitions. Word has length 121 [2021-12-28 00:45:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:46,551 INFO L470 AbstractCegarLoop]: Abstraction has 4742 states and 8111 transitions. [2021-12-28 00:45:46,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 4742 states and 8111 transitions. [2021-12-28 00:45:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-28 00:45:46,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:46,561 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:46,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:45:46,561 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:46,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:46,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2018241345, now seen corresponding path program 1 times [2021-12-28 00:45:46,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:46,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269319881] [2021-12-28 00:45:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:46,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:45:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:45:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:45:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:45:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:45:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:45:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:46,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:46,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269319881] [2021-12-28 00:45:46,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269319881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:46,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:46,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:46,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006192027] [2021-12-28 00:45:46,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:46,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:46,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:46,630 INFO L87 Difference]: Start difference. First operand 4742 states and 8111 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:48,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:48,075 INFO L93 Difference]: Finished difference Result 11710 states and 20396 transitions. [2021-12-28 00:45:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:48,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-28 00:45:48,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:48,110 INFO L225 Difference]: With dead ends: 11710 [2021-12-28 00:45:48,110 INFO L226 Difference]: Without dead ends: 7785 [2021-12-28 00:45:48,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:48,121 INFO L933 BasicCegarLoop]: 761 mSDtfsCounter, 1440 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:48,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1459 Valid, 1582 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:48,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2021-12-28 00:45:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7585. [2021-12-28 00:45:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7585 states, 6304 states have (on average 1.6460977157360406) internal successors, (10377), 6312 states have internal predecessors, (10377), 1253 states have call successors, (1253), 23 states have call predecessors, (1253), 27 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2021-12-28 00:45:48,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7585 states to 7585 states and 13000 transitions. [2021-12-28 00:45:48,534 INFO L78 Accepts]: Start accepts. Automaton has 7585 states and 13000 transitions. Word has length 122 [2021-12-28 00:45:48,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:48,534 INFO L470 AbstractCegarLoop]: Abstraction has 7585 states and 13000 transitions. [2021-12-28 00:45:48,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand 7585 states and 13000 transitions. [2021-12-28 00:45:48,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:45:48,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:48,547 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:48,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:45:48,547 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:48,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:48,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1409494517, now seen corresponding path program 1 times [2021-12-28 00:45:48,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:48,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879554990] [2021-12-28 00:45:48,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:48,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:45:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:45:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:45:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:45:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:45:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:45:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:48,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:48,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879554990] [2021-12-28 00:45:48,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879554990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:48,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:48,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:48,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444666179] [2021-12-28 00:45:48,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:48,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:48,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:48,628 INFO L87 Difference]: Start difference. First operand 7585 states and 13000 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:50,228 INFO L93 Difference]: Finished difference Result 19325 states and 33672 transitions. [2021-12-28 00:45:50,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:50,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-28 00:45:50,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:50,287 INFO L225 Difference]: With dead ends: 19325 [2021-12-28 00:45:50,287 INFO L226 Difference]: Without dead ends: 12959 [2021-12-28 00:45:50,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:50,301 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 1439 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:50,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1458 Valid, 1561 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:45:50,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2021-12-28 00:45:50,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 12759. [2021-12-28 00:45:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12759 states, 10656 states have (on average 1.646021021021021) internal successors, (17540), 10664 states have internal predecessors, (17540), 2075 states have call successors, (2075), 23 states have call predecessors, (2075), 27 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2021-12-28 00:45:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12759 states to 12759 states and 21885 transitions. [2021-12-28 00:45:51,006 INFO L78 Accepts]: Start accepts. Automaton has 12759 states and 21885 transitions. Word has length 123 [2021-12-28 00:45:51,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:51,011 INFO L470 AbstractCegarLoop]: Abstraction has 12759 states and 21885 transitions. [2021-12-28 00:45:51,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12759 states and 21885 transitions. [2021-12-28 00:45:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:45:51,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:51,030 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:51,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:45:51,030 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1262451699, now seen corresponding path program 1 times [2021-12-28 00:45:51,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:51,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989155837] [2021-12-28 00:45:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:51,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:45:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:45:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:45:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:45:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:45:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:45:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:51,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989155837] [2021-12-28 00:45:51,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989155837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:51,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:51,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:51,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933852381] [2021-12-28 00:45:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:51,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:51,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:51,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:51,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:51,103 INFO L87 Difference]: Start difference. First operand 12759 states and 21885 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:53,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:53,016 INFO L93 Difference]: Finished difference Result 30808 states and 53372 transitions. [2021-12-28 00:45:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:53,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-28 00:45:53,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:53,082 INFO L225 Difference]: With dead ends: 30808 [2021-12-28 00:45:53,083 INFO L226 Difference]: Without dead ends: 20272 [2021-12-28 00:45:53,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:53,111 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1433 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:53,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 1536 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:53,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20272 states. [2021-12-28 00:45:54,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20272 to 20072. [2021-12-28 00:45:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20072 states, 16766 states have (on average 1.621495884528212) internal successors, (27186), 16774 states have internal predecessors, (27186), 3278 states have call successors, (3278), 23 states have call predecessors, (3278), 27 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2021-12-28 00:45:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20072 states to 20072 states and 34081 transitions. [2021-12-28 00:45:54,188 INFO L78 Accepts]: Start accepts. Automaton has 20072 states and 34081 transitions. Word has length 124 [2021-12-28 00:45:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:54,189 INFO L470 AbstractCegarLoop]: Abstraction has 20072 states and 34081 transitions. [2021-12-28 00:45:54,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 20072 states and 34081 transitions. [2021-12-28 00:45:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-28 00:45:54,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:54,206 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:54,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:45:54,206 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:54,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:54,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1532157942, now seen corresponding path program 1 times [2021-12-28 00:45:54,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:54,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170204621] [2021-12-28 00:45:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:54,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:45:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:45:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:45:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:45:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:45:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:45:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:54,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:54,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170204621] [2021-12-28 00:45:54,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170204621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:54,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:54,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:54,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134913307] [2021-12-28 00:45:54,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:54,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:54,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:54,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:54,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:54,298 INFO L87 Difference]: Start difference. First operand 20072 states and 34081 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:56,875 INFO L93 Difference]: Finished difference Result 53250 states and 91906 transitions. [2021-12-28 00:45:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-12-28 00:45:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:56,975 INFO L225 Difference]: With dead ends: 53250 [2021-12-28 00:45:56,975 INFO L226 Difference]: Without dead ends: 36078 [2021-12-28 00:45:57,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:45:57,011 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1434 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:57,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 1562 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:45:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36078 states. [2021-12-28 00:45:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36078 to 35878. [2021-12-28 00:45:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35878 states, 30122 states have (on average 1.6183520350574332) internal successors, (48748), 30130 states have internal predecessors, (48748), 5728 states have call successors, (5728), 23 states have call predecessors, (5728), 27 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2021-12-28 00:45:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35878 states to 35878 states and 60817 transitions. [2021-12-28 00:45:59,079 INFO L78 Accepts]: Start accepts. Automaton has 35878 states and 60817 transitions. Word has length 125 [2021-12-28 00:45:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:59,079 INFO L470 AbstractCegarLoop]: Abstraction has 35878 states and 60817 transitions. [2021-12-28 00:45:59,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:45:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 35878 states and 60817 transitions. [2021-12-28 00:45:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-28 00:45:59,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:59,098 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:45:59,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:45:59,098 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash 461603321, now seen corresponding path program 1 times [2021-12-28 00:45:59,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:59,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623149040] [2021-12-28 00:45:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:59,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:45:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:45:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:45:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:45:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:45:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:45:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:59,201 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:59,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:59,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623149040] [2021-12-28 00:45:59,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623149040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:59,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:59,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:59,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831347715] [2021-12-28 00:45:59,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:59,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:59,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:59,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:59,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:59,204 INFO L87 Difference]: Start difference. First operand 35878 states and 60817 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:46:02,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:46:02,674 INFO L93 Difference]: Finished difference Result 98097 states and 168465 transitions. [2021-12-28 00:46:02,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:46:02,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-12-28 00:46:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:46:02,901 INFO L225 Difference]: With dead ends: 98097 [2021-12-28 00:46:02,901 INFO L226 Difference]: Without dead ends: 66075 [2021-12-28 00:46:02,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:46:02,990 INFO L933 BasicCegarLoop]: 750 mSDtfsCounter, 1433 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:46:02,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 1560 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:46:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66075 states. [2021-12-28 00:46:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66075 to 65875. [2021-12-28 00:46:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65875 states, 55606 states have (on average 1.6142322770924) internal successors, (89761), 55614 states have internal predecessors, (89761), 10241 states have call successors, (10241), 23 states have call predecessors, (10241), 27 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2021-12-28 00:46:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65875 states to 65875 states and 111388 transitions. [2021-12-28 00:46:06,785 INFO L78 Accepts]: Start accepts. Automaton has 65875 states and 111388 transitions. Word has length 126 [2021-12-28 00:46:06,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:46:06,787 INFO L470 AbstractCegarLoop]: Abstraction has 65875 states and 111388 transitions. [2021-12-28 00:46:06,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:46:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand 65875 states and 111388 transitions. [2021-12-28 00:46:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-28 00:46:06,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:46:06,809 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:46:06,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:46:06,809 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:46:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:46:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash 69569418, now seen corresponding path program 1 times [2021-12-28 00:46:06,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:46:06,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693226555] [2021-12-28 00:46:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:46:06,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:46:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:46:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:46:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:46:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:46:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:46:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:46:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:46:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:46:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:46:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:46:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:46:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:46:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:46:06,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:46:06,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693226555] [2021-12-28 00:46:06,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693226555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:46:06,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:46:06,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:46:06,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350124857] [2021-12-28 00:46:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:46:06,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:46:06,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:46:06,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:46:06,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:46:06,880 INFO L87 Difference]: Start difference. First operand 65875 states and 111388 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:46:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:46:12,553 INFO L93 Difference]: Finished difference Result 123758 states and 212898 transitions. [2021-12-28 00:46:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:46:12,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-12-28 00:46:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:46:12,970 INFO L225 Difference]: With dead ends: 123758 [2021-12-28 00:46:12,970 INFO L226 Difference]: Without dead ends: 123563 [2021-12-28 00:46:13,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:46:13,033 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 1428 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:46:13,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1446 Valid, 1562 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:46:13,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123563 states. [2021-12-28 00:46:18,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123563 to 123363. [2021-12-28 00:46:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123363 states, 104726 states have (on average 1.6090846590149532) internal successors, (168513), 104734 states have internal predecessors, (168513), 18609 states have call successors, (18609), 23 states have call predecessors, (18609), 27 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2021-12-28 00:46:19,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123363 states to 123363 states and 207922 transitions. [2021-12-28 00:46:19,190 INFO L78 Accepts]: Start accepts. Automaton has 123363 states and 207922 transitions. Word has length 127 [2021-12-28 00:46:19,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:46:19,191 INFO L470 AbstractCegarLoop]: Abstraction has 123363 states and 207922 transitions. [2021-12-28 00:46:19,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:46:19,191 INFO L276 IsEmpty]: Start isEmpty. Operand 123363 states and 207922 transitions. [2021-12-28 00:46:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-28 00:46:19,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:46:19,212 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:46:19,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-28 00:46:19,213 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:46:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:46:19,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1503681402, now seen corresponding path program 1 times [2021-12-28 00:46:19,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:46:19,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92820215] [2021-12-28 00:46:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:46:19,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:46:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:46:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:46:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:46:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:46:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:46:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:46:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:46:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:46:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:46:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:46:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:46:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:46:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:46:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:46:19,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:46:19,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92820215] [2021-12-28 00:46:19,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92820215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:46:19,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:46:19,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-28 00:46:19,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674955832] [2021-12-28 00:46:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:46:19,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-28 00:46:19,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:46:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-28 00:46:19,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:46:19,379 INFO L87 Difference]: Start difference. First operand 123363 states and 207922 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12)