./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_spec6_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 e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:52:34,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:52:34,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:52:34,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:52:34,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:52:34,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:52:34,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:52:34,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:52:34,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:52:34,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:52:34,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:52:34,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:52:34,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:52:34,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:52:34,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:52:34,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:52:34,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:52:34,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:52:34,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:52:34,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:52:34,521 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:52:34,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:52:34,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:52:34,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:52:34,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:52:34,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:52:34,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:52:34,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:52:34,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:52:34,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:52:34,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:52:34,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:52:34,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:52:34,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:52:34,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:52:34,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:52:34,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:52:34,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:52:34,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:52:34,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:52:34,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:52:34,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:52:34,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:52:34,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:52:34,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:52:34,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:52:34,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:52:34,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:52:34,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:52:34,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:52:34,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:52:34,580 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:52:34,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:52:34,581 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:52:34,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:52:34,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:52:34,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:52:34,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:52:34,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:52:34,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:52:34,583 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:52:34,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:52:34,583 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:52:34,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:52:34,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:52:34,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:52:34,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:52:34,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:52:34,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:52:34,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:52:34,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:52:34,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:52:34,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:52:34,586 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:52:34,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:52:34,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:52:34,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e80e5ec358c01b9328a945ffeac50362818d778d67430de128e75eb1cc0d9bc1 [2022-07-21 04:52:34,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:52:34,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:52:34,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:52:34,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:52:34,950 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:52:34,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-07-21 04:52:35,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67c9acc82/67b0956bb7dd42c2a2fbb88d5c84ae60/FLAGf36d98c5c [2022-07-21 04:52:35,504 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:52:35,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product26.cil.c [2022-07-21 04:52:35,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67c9acc82/67b0956bb7dd42c2a2fbb88d5c84ae60/FLAGf36d98c5c [2022-07-21 04:52:35,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67c9acc82/67b0956bb7dd42c2a2fbb88d5c84ae60 [2022-07-21 04:52:35,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:52:35,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:52:35,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:52:35,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:52:35,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:52:35,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:52:35" (1/1) ... [2022-07-21 04:52:35,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137faf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:35, skipping insertion in model container [2022-07-21 04:52:35,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:52:35" (1/1) ... [2022-07-21 04:52:35,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:52:35,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:52:36,317 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_spec6_product26.cil.c[51398,51411] [2022-07-21 04:52:36,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:52:36,360 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:52:36,484 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_spec6_product26.cil.c[51398,51411] [2022-07-21 04:52:36,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:52:36,529 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:52:36,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36 WrapperNode [2022-07-21 04:52:36,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:52:36,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:52:36,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:52:36,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:52:36,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,653 INFO L137 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1084 [2022-07-21 04:52:36,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:52:36,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:52:36,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:52:36,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:52:36,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:52:36,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:52:36,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:52:36,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:52:36,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (1/1) ... [2022-07-21 04:52:36,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:52:36,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:36,780 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) [2022-07-21 04:52:36,786 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 [2022-07-21 04:52:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-07-21 04:52:36,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-07-21 04:52:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-21 04:52:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-21 04:52:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-21 04:52:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-21 04:52:36,820 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-21 04:52:36,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-21 04:52:36,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-21 04:52:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-21 04:52:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-21 04:52:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-21 04:52:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:52:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-21 04:52:36,826 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-21 04:52:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-21 04:52:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-21 04:52:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-21 04:52:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-21 04:52:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-21 04:52:36,827 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-21 04:52:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-21 04:52:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-21 04:52:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-21 04:52:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-21 04:52:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-21 04:52:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-21 04:52:36,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-21 04:52:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-21 04:52:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:52:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-07-21 04:52:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-07-21 04:52:36,829 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-21 04:52:36,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-21 04:52:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-21 04:52:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-21 04:52:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-21 04:52:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-21 04:52:36,830 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-21 04:52:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-21 04:52:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-21 04:52:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-21 04:52:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-21 04:52:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-21 04:52:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-21 04:52:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-21 04:52:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-21 04:52:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-21 04:52:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:52:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-21 04:52:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-21 04:52:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-21 04:52:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-21 04:52:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:52:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:52:37,081 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:52:37,083 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:52:37,811 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:52:37,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:52:37,820 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:52:37,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:52:37 BoogieIcfgContainer [2022-07-21 04:52:37,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:52:37,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:52:37,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:52:37,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:52:37,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:52:35" (1/3) ... [2022-07-21 04:52:37,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571c919d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:52:37, skipping insertion in model container [2022-07-21 04:52:37,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:52:36" (2/3) ... [2022-07-21 04:52:37,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571c919d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:52:37, skipping insertion in model container [2022-07-21 04:52:37,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:52:37" (3/3) ... [2022-07-21 04:52:37,831 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2022-07-21 04:52:37,843 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:52:37,843 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:52:37,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:52:37,917 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27a16b75, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4072b81f [2022-07-21 04:52:37,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:52:37,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 412 states, 319 states have (on average 1.5517241379310345) internal successors, (495), 324 states have internal predecessors, (495), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-07-21 04:52:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 04:52:37,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:37,946 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:37,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:37,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:37,951 INFO L85 PathProgramCache]: Analyzing trace with hash 600490209, now seen corresponding path program 1 times [2022-07-21 04:52:37,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:37,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938055214] [2022-07-21 04:52:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:37,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:52:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:52:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:52:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:52:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:52:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:52:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:52:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:52:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:52:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:52:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:52:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:52:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:52:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:52:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:52:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 04:52:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 04:52:38,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:38,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938055214] [2022-07-21 04:52:38,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938055214] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:52:38,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680475435] [2022-07-21 04:52:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:38,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:38,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:38,483 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) [2022-07-21 04:52:38,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 04:52:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:38,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 04:52:38,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:52:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-21 04:52:38,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:52:38,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680475435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:38,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:52:38,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-21 04:52:38,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507811874] [2022-07-21 04:52:38,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:38,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 04:52:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:38,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 04:52:38,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:52:38,930 INFO L87 Difference]: Start difference. First operand has 412 states, 319 states have (on average 1.5517241379310345) internal successors, (495), 324 states have internal predecessors, (495), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:52:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:38,984 INFO L93 Difference]: Finished difference Result 626 states and 936 transitions. [2022-07-21 04:52:38,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 04:52:38,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2022-07-21 04:52:38,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:38,999 INFO L225 Difference]: With dead ends: 626 [2022-07-21 04:52:38,999 INFO L226 Difference]: Without dead ends: 405 [2022-07-21 04:52:39,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:52:39,015 INFO L413 NwaCegarLoop]: 623 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, 623 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 [2022-07-21 04:52:39,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:52:39,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-07-21 04:52:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-07-21 04:52:39,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 313 states have (on average 1.5463258785942493) internal successors, (484), 317 states have internal predecessors, (484), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-21 04:52:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 615 transitions. [2022-07-21 04:52:39,084 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 615 transitions. Word has length 142 [2022-07-21 04:52:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:39,086 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 615 transitions. [2022-07-21 04:52:39,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:52:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 615 transitions. [2022-07-21 04:52:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-21 04:52:39,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:39,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:39,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 04:52:39,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-21 04:52:39,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:39,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash -221791313, now seen corresponding path program 1 times [2022-07-21 04:52:39,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:39,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956964953] [2022-07-21 04:52:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:39,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:52:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:52:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:52:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:52:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:52:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:52:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:52:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:52:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:52:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:52:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:52:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:52:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:52:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:52:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:52:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:52:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 04:52:39,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:39,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956964953] [2022-07-21 04:52:39,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956964953] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:52:39,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344209411] [2022-07-21 04:52:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:39,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:39,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:39,516 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) [2022-07-21 04:52:39,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 04:52:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:39,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 04:52:39,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:52:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-21 04:52:39,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:52:39,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344209411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:39,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:52:39,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:52:39,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640182332] [2022-07-21 04:52:39,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:39,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:52:39,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:52:39,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:52:39,855 INFO L87 Difference]: Start difference. First operand 405 states and 615 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:52:39,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:39,926 INFO L93 Difference]: Finished difference Result 616 states and 914 transitions. [2022-07-21 04:52:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:52:39,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2022-07-21 04:52:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:39,934 INFO L225 Difference]: With dead ends: 616 [2022-07-21 04:52:39,935 INFO L226 Difference]: Without dead ends: 408 [2022-07-21 04:52:39,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:52:39,939 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 1 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1224 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 [2022-07-21 04:52:39,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:52:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-07-21 04:52:39,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407. [2022-07-21 04:52:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 315 states have (on average 1.542857142857143) internal successors, (486), 319 states have internal predecessors, (486), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-21 04:52:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 617 transitions. [2022-07-21 04:52:39,992 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 617 transitions. Word has length 143 [2022-07-21 04:52:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:39,992 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 617 transitions. [2022-07-21 04:52:39,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:52:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 617 transitions. [2022-07-21 04:52:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-21 04:52:40,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:40,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:40,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 04:52:40,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-21 04:52:40,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:40,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:40,217 INFO L85 PathProgramCache]: Analyzing trace with hash -848256898, now seen corresponding path program 1 times [2022-07-21 04:52:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:40,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632641509] [2022-07-21 04:52:40,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:40,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:52:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:52:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:52:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:52:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:52:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:52:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:52:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:52:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:52:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:52:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:52:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:52:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:52:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:52:40,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:40,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632641509] [2022-07-21 04:52:40,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632641509] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:52:40,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612321073] [2022-07-21 04:52:40,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:40,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:40,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:40,416 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) [2022-07-21 04:52:40,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 04:52:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:40,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:52:40,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:52:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 04:52:40,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:52:40,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612321073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:40,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:52:40,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:52:40,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48752883] [2022-07-21 04:52:40,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:40,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:52:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:52:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:52:40,737 INFO L87 Difference]: Start difference. First operand 407 states and 617 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:52:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:40,793 INFO L93 Difference]: Finished difference Result 867 states and 1334 transitions. [2022-07-21 04:52:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:52:40,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-07-21 04:52:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:40,798 INFO L225 Difference]: With dead ends: 867 [2022-07-21 04:52:40,798 INFO L226 Difference]: Without dead ends: 487 [2022-07-21 04:52:40,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:52:40,801 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 142 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1206 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 [2022-07-21 04:52:40,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1206 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:52:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-07-21 04:52:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 479. [2022-07-21 04:52:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 373 states have (on average 1.5630026809651474) internal successors, (583), 377 states have internal predecessors, (583), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-07-21 04:52:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 742 transitions. [2022-07-21 04:52:40,852 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 742 transitions. Word has length 133 [2022-07-21 04:52:40,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:40,852 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 742 transitions. [2022-07-21 04:52:40,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:52:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 742 transitions. [2022-07-21 04:52:40,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-21 04:52:40,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:40,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:40,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 04:52:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:41,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2117883540, now seen corresponding path program 1 times [2022-07-21 04:52:41,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:41,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934536658] [2022-07-21 04:52:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:52:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:52:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:52:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:52:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:52:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:52:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:52:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:52:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:52:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 04:52:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 04:52:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 04:52:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:52:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:52:41,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934536658] [2022-07-21 04:52:41,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934536658] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:52:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406988675] [2022-07-21 04:52:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:41,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:41,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:41,204 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) [2022-07-21 04:52:41,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 04:52:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 04:52:41,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:52:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 04:52:41,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:52:41,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406988675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:41,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:52:41,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-21 04:52:41,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336708982] [2022-07-21 04:52:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:41,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:52:41,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:41,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:52:41,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:52:41,546 INFO L87 Difference]: Start difference. First operand 479 states and 742 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 04:52:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:41,619 INFO L93 Difference]: Finished difference Result 949 states and 1474 transitions. [2022-07-21 04:52:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:52:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2022-07-21 04:52:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:41,625 INFO L225 Difference]: With dead ends: 949 [2022-07-21 04:52:41,626 INFO L226 Difference]: Without dead ends: 481 [2022-07-21 04:52:41,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:52:41,631 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 160 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:41,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2241 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:52:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-21 04:52:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-07-21 04:52:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 374 states have (on average 1.5614973262032086) internal successors, (584), 379 states have internal predecessors, (584), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (81), 78 states have call predecessors, (81), 79 states have call successors, (81) [2022-07-21 04:52:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 745 transitions. [2022-07-21 04:52:41,665 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 745 transitions. Word has length 134 [2022-07-21 04:52:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:41,665 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 745 transitions. [2022-07-21 04:52:41,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 04:52:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 745 transitions. [2022-07-21 04:52:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-21 04:52:41,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:41,669 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:41,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 04:52:41,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:41,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:41,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:41,884 INFO L85 PathProgramCache]: Analyzing trace with hash -8021744, now seen corresponding path program 1 times [2022-07-21 04:52:41,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:41,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281816011] [2022-07-21 04:52:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:41,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:41,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 04:52:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:52:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:52:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:52:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:52:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:52:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:52:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:52:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:52:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 04:52:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 04:52:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 04:52:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 04:52:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 04:52:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 04:52:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:52:42,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:42,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281816011] [2022-07-21 04:52:42,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281816011] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:52:42,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293306503] [2022-07-21 04:52:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:42,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:42,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:42,084 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) [2022-07-21 04:52:42,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 04:52:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 04:52:42,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:52:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 04:52:42,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:52:42,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293306503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:42,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:52:42,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-21 04:52:42,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024351158] [2022-07-21 04:52:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:42,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:52:42,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:52:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:52:42,450 INFO L87 Difference]: Start difference. First operand 481 states and 745 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 04:52:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:42,522 INFO L93 Difference]: Finished difference Result 951 states and 1479 transitions. [2022-07-21 04:52:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:52:42,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2022-07-21 04:52:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:42,528 INFO L225 Difference]: With dead ends: 951 [2022-07-21 04:52:42,528 INFO L226 Difference]: Without dead ends: 483 [2022-07-21 04:52:42,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:52:42,531 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 159 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:42,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2230 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:52:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-07-21 04:52:42,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-07-21 04:52:42,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.56) internal successors, (585), 381 states have internal predecessors, (585), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-07-21 04:52:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 751 transitions. [2022-07-21 04:52:42,558 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 751 transitions. Word has length 154 [2022-07-21 04:52:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:42,558 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 751 transitions. [2022-07-21 04:52:42,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 04:52:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 751 transitions. [2022-07-21 04:52:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 04:52:42,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:42,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:42,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 04:52:42,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:42,790 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:42,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:42,790 INFO L85 PathProgramCache]: Analyzing trace with hash 710296192, now seen corresponding path program 1 times [2022-07-21 04:52:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:42,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555259517] [2022-07-21 04:52:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:42,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:52:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:52:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:52:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:52:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:52:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:52:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:52:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:52:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:52:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:52:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:52:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:52:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:52:42,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:42,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555259517] [2022-07-21 04:52:42,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555259517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:42,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:52:42,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:52:42,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405651943] [2022-07-21 04:52:42,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:42,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:52:42,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:42,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:52:42,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:52:42,906 INFO L87 Difference]: Start difference. First operand 483 states and 751 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 04:52:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:45,243 INFO L93 Difference]: Finished difference Result 1137 states and 1794 transitions. [2022-07-21 04:52:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:52:45,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2022-07-21 04:52:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:45,248 INFO L225 Difference]: With dead ends: 1137 [2022-07-21 04:52:45,248 INFO L226 Difference]: Without dead ends: 677 [2022-07-21 04:52:45,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:52:45,251 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1494 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:45,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1758 Invalid, 3225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 04:52:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-07-21 04:52:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 483. [2022-07-21 04:52:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 375 states have (on average 1.56) internal successors, (585), 381 states have internal predecessors, (585), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 78 states have call predecessors, (85), 79 states have call successors, (85) [2022-07-21 04:52:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 750 transitions. [2022-07-21 04:52:45,290 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 750 transitions. Word has length 136 [2022-07-21 04:52:45,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:45,290 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 750 transitions. [2022-07-21 04:52:45,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 04:52:45,291 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 750 transitions. [2022-07-21 04:52:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 04:52:45,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:45,294 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:45,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:52:45,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:45,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1827459276, now seen corresponding path program 2 times [2022-07-21 04:52:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:45,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807690780] [2022-07-21 04:52:45,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:45,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:52:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:52:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:52:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:52:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:52:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:52:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:52:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:52:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:52:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:52:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 04:52:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:52:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:52:45,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:45,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807690780] [2022-07-21 04:52:45,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807690780] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:45,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:52:45,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:52:45,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226621602] [2022-07-21 04:52:45,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:45,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:52:45,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:45,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:52:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:52:45,425 INFO L87 Difference]: Start difference. First operand 483 states and 750 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 04:52:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:47,577 INFO L93 Difference]: Finished difference Result 1139 states and 1797 transitions. [2022-07-21 04:52:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:52:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2022-07-21 04:52:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:47,583 INFO L225 Difference]: With dead ends: 1139 [2022-07-21 04:52:47,583 INFO L226 Difference]: Without dead ends: 679 [2022-07-21 04:52:47,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:52:47,585 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 1504 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 3209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:47,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1751 Invalid, 3209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 2563 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 04:52:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-07-21 04:52:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 485. [2022-07-21 04:52:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 383 states have internal predecessors, (586), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (87), 78 states have call predecessors, (87), 79 states have call successors, (87) [2022-07-21 04:52:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 753 transitions. [2022-07-21 04:52:47,614 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 753 transitions. Word has length 137 [2022-07-21 04:52:47,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:47,614 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 753 transitions. [2022-07-21 04:52:47,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 04:52:47,615 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 753 transitions. [2022-07-21 04:52:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 04:52:47,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:47,618 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:47,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:52:47,618 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:47,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash 734695451, now seen corresponding path program 1 times [2022-07-21 04:52:47,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:47,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457376689] [2022-07-21 04:52:47,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:47,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:52:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:52:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:52:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:52:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:52:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:52:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:52:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:52:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:52:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:52:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:52:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 04:52:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:52:47,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:47,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457376689] [2022-07-21 04:52:47,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457376689] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:47,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:52:47,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:52:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629275705] [2022-07-21 04:52:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:47,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:52:47,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:52:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:52:47,801 INFO L87 Difference]: Start difference. First operand 485 states and 753 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 04:52:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:50,593 INFO L93 Difference]: Finished difference Result 1137 states and 1792 transitions. [2022-07-21 04:52:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:52:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2022-07-21 04:52:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:50,597 INFO L225 Difference]: With dead ends: 1137 [2022-07-21 04:52:50,598 INFO L226 Difference]: Without dead ends: 679 [2022-07-21 04:52:50,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:52:50,600 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 1630 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4692 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 5372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 4692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:50,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 2140 Invalid, 5372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 4692 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 04:52:50,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-07-21 04:52:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 485. [2022-07-21 04:52:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 376 states have (on average 1.5585106382978724) internal successors, (586), 383 states have internal predecessors, (586), 80 states have call successors, (80), 25 states have call predecessors, (80), 28 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-07-21 04:52:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 752 transitions. [2022-07-21 04:52:50,631 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 752 transitions. Word has length 138 [2022-07-21 04:52:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:50,632 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 752 transitions. [2022-07-21 04:52:50,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-21 04:52:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 752 transitions. [2022-07-21 04:52:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 04:52:50,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:50,635 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:50,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:52:50,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1770125293, now seen corresponding path program 1 times [2022-07-21 04:52:50,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:50,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047485284] [2022-07-21 04:52:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:52:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:52:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:52:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:52:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:52:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:52:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:52:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:52:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:52:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:52:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:52:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 04:52:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 04:52:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 04:52:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 04:52:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:52:50,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:50,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047485284] [2022-07-21 04:52:50,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047485284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:50,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:52:50,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:52:50,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114129296] [2022-07-21 04:52:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:50,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:52:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:52:50,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:52:50,778 INFO L87 Difference]: Start difference. First operand 485 states and 752 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 04:52:53,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:53,524 INFO L93 Difference]: Finished difference Result 1139 states and 1798 transitions. [2022-07-21 04:52:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:52:53,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 158 [2022-07-21 04:52:53,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:53,529 INFO L225 Difference]: With dead ends: 1139 [2022-07-21 04:52:53,529 INFO L226 Difference]: Without dead ends: 681 [2022-07-21 04:52:53,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:52:53,532 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 1633 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4654 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 4654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:53,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 2134 Invalid, 5350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 4654 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 04:52:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-21 04:52:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 487. [2022-07-21 04:52:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 377 states have (on average 1.557029177718833) internal successors, (587), 385 states have internal predecessors, (587), 80 states have call successors, (80), 25 states have call predecessors, (80), 29 states have return successors, (91), 78 states have call predecessors, (91), 79 states have call successors, (91) [2022-07-21 04:52:53,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 758 transitions. [2022-07-21 04:52:53,564 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 758 transitions. Word has length 158 [2022-07-21 04:52:53,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:53,564 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 758 transitions. [2022-07-21 04:52:53,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 04:52:53,565 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 758 transitions. [2022-07-21 04:52:53,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 04:52:53,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:53,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:53,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:52:53,568 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -389717706, now seen corresponding path program 1 times [2022-07-21 04:52:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:53,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049379001] [2022-07-21 04:52:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:53,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:52:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:52:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:52:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:52:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:52:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:52:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:52:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:52:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:52:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 04:52:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:52:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 04:52:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 04:52:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:53,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049379001] [2022-07-21 04:52:53,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049379001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:52:53,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587906748] [2022-07-21 04:52:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:53,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:53,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:52:53,703 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) [2022-07-21 04:52:53,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 04:52:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:53,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:52:53,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:52:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:52:53,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:52:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:52:54,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587906748] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:52:54,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:52:54,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-21 04:52:54,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813005716] [2022-07-21 04:52:54,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:52:54,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 04:52:54,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:54,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 04:52:54,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:52:54,071 INFO L87 Difference]: Start difference. First operand 487 states and 758 transitions. Second operand has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (38), 6 states have call predecessors, (38), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-21 04:52:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:52:58,088 INFO L93 Difference]: Finished difference Result 2048 states and 3436 transitions. [2022-07-21 04:52:58,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 04:52:58,089 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (38), 6 states have call predecessors, (38), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 140 [2022-07-21 04:52:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:52:58,097 INFO L225 Difference]: With dead ends: 2048 [2022-07-21 04:52:58,097 INFO L226 Difference]: Without dead ends: 1592 [2022-07-21 04:52:58,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-21 04:52:58,099 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 4230 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 6933 mSolverCounterSat, 1708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4232 SdHoareTripleChecker+Valid, 4620 SdHoareTripleChecker+Invalid, 8641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1708 IncrementalHoareTripleChecker+Valid, 6933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:52:58,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4232 Valid, 4620 Invalid, 8641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1708 Valid, 6933 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-21 04:52:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2022-07-21 04:52:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 930. [2022-07-21 04:52:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 741 states have (on average 1.6099865047233468) internal successors, (1193), 749 states have internal predecessors, (1193), 159 states have call successors, (159), 25 states have call predecessors, (159), 29 states have return successors, (180), 157 states have call predecessors, (180), 158 states have call successors, (180) [2022-07-21 04:52:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1532 transitions. [2022-07-21 04:52:58,168 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1532 transitions. Word has length 140 [2022-07-21 04:52:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:52:58,168 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1532 transitions. [2022-07-21 04:52:58,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (38), 6 states have call predecessors, (38), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-21 04:52:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1532 transitions. [2022-07-21 04:52:58,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-21 04:52:58,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:52:58,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:52:58,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 04:52:58,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:52:58,392 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:52:58,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:52:58,392 INFO L85 PathProgramCache]: Analyzing trace with hash -139214911, now seen corresponding path program 1 times [2022-07-21 04:52:58,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:52:58,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043333093] [2022-07-21 04:52:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:52:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:52:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:52:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:52:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:52:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:52:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:52:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:52:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:52:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:52:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:52:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:52:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:52:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:52:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:52:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:52:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:52:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:52:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 04:52:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 04:52:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 04:52:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:52:58,512 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:52:58,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:52:58,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043333093] [2022-07-21 04:52:58,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043333093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:52:58,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:52:58,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:52:58,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911361277] [2022-07-21 04:52:58,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:52:58,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:52:58,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:52:58,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:52:58,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:52:58,515 INFO L87 Difference]: Start difference. First operand 930 states and 1532 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:00,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:00,074 INFO L93 Difference]: Finished difference Result 2399 states and 4044 transitions. [2022-07-21 04:53:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:00,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2022-07-21 04:53:00,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:00,082 INFO L225 Difference]: With dead ends: 2399 [2022-07-21 04:53:00,083 INFO L226 Difference]: Without dead ends: 1547 [2022-07-21 04:53:00,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:00,086 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 1498 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:00,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1608 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:53:00,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2022-07-21 04:53:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1345. [2022-07-21 04:53:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1077 states have (on average 1.627669452181987) internal successors, (1753), 1085 states have internal predecessors, (1753), 238 states have call successors, (238), 25 states have call predecessors, (238), 29 states have return successors, (269), 236 states have call predecessors, (269), 237 states have call successors, (269) [2022-07-21 04:53:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2260 transitions. [2022-07-21 04:53:00,183 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2260 transitions. Word has length 162 [2022-07-21 04:53:00,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:00,183 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 2260 transitions. [2022-07-21 04:53:00,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2260 transitions. [2022-07-21 04:53:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 04:53:00,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:00,191 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:00,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:53:00,192 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:00,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash 126129074, now seen corresponding path program 1 times [2022-07-21 04:53:00,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:00,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276679676] [2022-07-21 04:53:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:00,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:53:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:53:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:53:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:53:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:53:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:53:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:53:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:53:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 04:53:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 04:53:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:00,294 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:53:00,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:00,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276679676] [2022-07-21 04:53:00,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276679676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:00,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:00,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660463480] [2022-07-21 04:53:00,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:00,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:00,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:00,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:00,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:00,296 INFO L87 Difference]: Start difference. First operand 1345 states and 2260 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:01,811 INFO L93 Difference]: Finished difference Result 3438 states and 5857 transitions. [2022-07-21 04:53:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:01,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-07-21 04:53:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:01,821 INFO L225 Difference]: With dead ends: 3438 [2022-07-21 04:53:01,822 INFO L226 Difference]: Without dead ends: 2224 [2022-07-21 04:53:01,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:01,825 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 1495 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:01,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1582 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:53:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-07-21 04:53:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2022. [2022-07-21 04:53:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1635 states have (on average 1.636085626911315) internal successors, (2675), 1643 states have internal predecessors, (2675), 357 states have call successors, (357), 25 states have call predecessors, (357), 29 states have return successors, (388), 355 states have call predecessors, (388), 356 states have call successors, (388) [2022-07-21 04:53:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 3420 transitions. [2022-07-21 04:53:01,989 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 3420 transitions. Word has length 144 [2022-07-21 04:53:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:01,990 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 3420 transitions. [2022-07-21 04:53:01,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 3420 transitions. [2022-07-21 04:53:02,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-21 04:53:02,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:02,002 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:53:02,002 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash -418139245, now seen corresponding path program 1 times [2022-07-21 04:53:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:02,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804529283] [2022-07-21 04:53:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:53:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:53:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:53:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:53:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:53:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:53:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:53:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:53:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 04:53:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 04:53:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 04:53:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 04:53:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 04:53:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:53:02,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:02,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804529283] [2022-07-21 04:53:02,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804529283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:02,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:02,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:02,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050984545] [2022-07-21 04:53:02,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:02,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:02,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:02,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:02,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:02,104 INFO L87 Difference]: Start difference. First operand 2022 states and 3420 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:03,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:03,595 INFO L93 Difference]: Finished difference Result 5023 states and 8636 transitions. [2022-07-21 04:53:03,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:03,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2022-07-21 04:53:03,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:03,612 INFO L225 Difference]: With dead ends: 5023 [2022-07-21 04:53:03,612 INFO L226 Difference]: Without dead ends: 3267 [2022-07-21 04:53:03,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:03,617 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1487 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:03,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1556 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:53:03,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-07-21 04:53:03,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3065. [2022-07-21 04:53:03,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 2516 states have (on average 1.6426868044515104) internal successors, (4133), 2524 states have internal predecessors, (4133), 519 states have call successors, (519), 25 states have call predecessors, (519), 29 states have return successors, (566), 517 states have call predecessors, (566), 518 states have call successors, (566) [2022-07-21 04:53:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 5218 transitions. [2022-07-21 04:53:03,827 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 5218 transitions. Word has length 164 [2022-07-21 04:53:03,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:03,827 INFO L495 AbstractCegarLoop]: Abstraction has 3065 states and 5218 transitions. [2022-07-21 04:53:03,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:03,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 5218 transitions. [2022-07-21 04:53:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 04:53:03,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:03,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:03,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:53:03,843 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:03,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1426222563, now seen corresponding path program 1 times [2022-07-21 04:53:03,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:03,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836183730] [2022-07-21 04:53:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:03,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:53:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:53:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:53:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:53:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:53:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:53:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:53:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:53:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 04:53:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 04:53:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 04:53:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 04:53:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 04:53:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:53:03,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:03,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836183730] [2022-07-21 04:53:03,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836183730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:03,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:03,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:03,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260673638] [2022-07-21 04:53:03,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:03,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:03,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:03,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:03,954 INFO L87 Difference]: Start difference. First operand 3065 states and 5218 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:05,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:05,608 INFO L93 Difference]: Finished difference Result 7537 states and 13051 transitions. [2022-07-21 04:53:05,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:05,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2022-07-21 04:53:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:05,634 INFO L225 Difference]: With dead ends: 7537 [2022-07-21 04:53:05,634 INFO L226 Difference]: Without dead ends: 4957 [2022-07-21 04:53:05,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:05,643 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 1476 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:05,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1563 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:53:05,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2022-07-21 04:53:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 4755. [2022-07-21 04:53:06,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4755 states, 3961 states have (on average 1.647311285029033) internal successors, (6525), 3969 states have internal predecessors, (6525), 764 states have call successors, (764), 25 states have call predecessors, (764), 29 states have return successors, (837), 762 states have call predecessors, (837), 763 states have call successors, (837) [2022-07-21 04:53:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4755 states to 4755 states and 8126 transitions. [2022-07-21 04:53:06,029 INFO L78 Accepts]: Start accepts. Automaton has 4755 states and 8126 transitions. Word has length 165 [2022-07-21 04:53:06,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:06,029 INFO L495 AbstractCegarLoop]: Abstraction has 4755 states and 8126 transitions. [2022-07-21 04:53:06,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:06,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4755 states and 8126 transitions. [2022-07-21 04:53:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 04:53:06,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:06,050 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:06,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:53:06,050 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:06,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:06,050 INFO L85 PathProgramCache]: Analyzing trace with hash 447078135, now seen corresponding path program 1 times [2022-07-21 04:53:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940771530] [2022-07-21 04:53:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:06,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:53:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:53:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:53:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:53:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:53:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:53:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:53:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:53:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 04:53:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 04:53:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 04:53:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 04:53:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 04:53:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:53:06,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:06,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940771530] [2022-07-21 04:53:06,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940771530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:06,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:06,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:06,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779718467] [2022-07-21 04:53:06,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:06,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:06,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:06,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:06,151 INFO L87 Difference]: Start difference. First operand 4755 states and 8126 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:07,968 INFO L93 Difference]: Finished difference Result 11738 states and 20428 transitions. [2022-07-21 04:53:07,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:07,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2022-07-21 04:53:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:08,000 INFO L225 Difference]: With dead ends: 11738 [2022-07-21 04:53:08,001 INFO L226 Difference]: Without dead ends: 7800 [2022-07-21 04:53:08,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:08,011 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 1475 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:08,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1601 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:53:08,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7800 states. [2022-07-21 04:53:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7800 to 7598. [2022-07-21 04:53:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7598 states, 6311 states have (on average 1.6453810806528284) internal successors, (10384), 6319 states have internal predecessors, (10384), 1257 states have call successors, (1257), 25 states have call predecessors, (1257), 29 states have return successors, (1374), 1255 states have call predecessors, (1374), 1256 states have call successors, (1374) [2022-07-21 04:53:08,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 13015 transitions. [2022-07-21 04:53:08,573 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 13015 transitions. Word has length 166 [2022-07-21 04:53:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:08,574 INFO L495 AbstractCegarLoop]: Abstraction has 7598 states and 13015 transitions. [2022-07-21 04:53:08,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 13015 transitions. [2022-07-21 04:53:08,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 04:53:08,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:08,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:08,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:53:08,604 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:08,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1579027841, now seen corresponding path program 1 times [2022-07-21 04:53:08,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:08,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383884831] [2022-07-21 04:53:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:53:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:53:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:53:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:53:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:53:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 04:53:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 04:53:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 04:53:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 04:53:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 04:53:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 04:53:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 04:53:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 04:53:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:08,720 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:53:08,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:08,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383884831] [2022-07-21 04:53:08,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383884831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:08,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:08,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:08,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610550421] [2022-07-21 04:53:08,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:08,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:08,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:08,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:08,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:08,723 INFO L87 Difference]: Start difference. First operand 7598 states and 13015 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:10,632 INFO L93 Difference]: Finished difference Result 19353 states and 33704 transitions. [2022-07-21 04:53:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:10,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2022-07-21 04:53:10,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:10,682 INFO L225 Difference]: With dead ends: 19353 [2022-07-21 04:53:10,682 INFO L226 Difference]: Without dead ends: 12974 [2022-07-21 04:53:10,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:10,707 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1479 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:10,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1557 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:53:10,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12974 states. [2022-07-21 04:53:11,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12974 to 12772. [2022-07-21 04:53:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12772 states, 10663 states have (on average 1.6455969239426054) internal successors, (17547), 10671 states have internal predecessors, (17547), 2079 states have call successors, (2079), 25 states have call predecessors, (2079), 29 states have return successors, (2274), 2077 states have call predecessors, (2274), 2078 states have call successors, (2274) [2022-07-21 04:53:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12772 states to 12772 states and 21900 transitions. [2022-07-21 04:53:11,574 INFO L78 Accepts]: Start accepts. Automaton has 12772 states and 21900 transitions. Word has length 167 [2022-07-21 04:53:11,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:11,574 INFO L495 AbstractCegarLoop]: Abstraction has 12772 states and 21900 transitions. [2022-07-21 04:53:11,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12772 states and 21900 transitions. [2022-07-21 04:53:11,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-21 04:53:11,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:11,616 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:11,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:53:11,616 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1194644371, now seen corresponding path program 1 times [2022-07-21 04:53:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:11,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307619245] [2022-07-21 04:53:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:11,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:53:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:53:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:53:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:53:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:53:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 04:53:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 04:53:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:53:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:53:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 04:53:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:53:11,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:11,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307619245] [2022-07-21 04:53:11,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307619245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:11,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:11,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:11,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200024913] [2022-07-21 04:53:11,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:11,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:11,718 INFO L87 Difference]: Start difference. First operand 12772 states and 21900 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:14,150 INFO L93 Difference]: Finished difference Result 30836 states and 53404 transitions. [2022-07-21 04:53:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2022-07-21 04:53:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:14,230 INFO L225 Difference]: With dead ends: 30836 [2022-07-21 04:53:14,231 INFO L226 Difference]: Without dead ends: 20287 [2022-07-21 04:53:14,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:14,263 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 1467 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:14,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1541 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:53:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20287 states. [2022-07-21 04:53:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20287 to 20085. [2022-07-21 04:53:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20085 states, 16773 states have (on average 1.6212365110594407) internal successors, (27193), 16781 states have internal predecessors, (27193), 3282 states have call successors, (3282), 25 states have call predecessors, (3282), 29 states have return successors, (3621), 3280 states have call predecessors, (3621), 3281 states have call successors, (3621) [2022-07-21 04:53:15,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20085 states to 20085 states and 34096 transitions. [2022-07-21 04:53:15,409 INFO L78 Accepts]: Start accepts. Automaton has 20085 states and 34096 transitions. Word has length 149 [2022-07-21 04:53:15,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:15,409 INFO L495 AbstractCegarLoop]: Abstraction has 20085 states and 34096 transitions. [2022-07-21 04:53:15,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 20085 states and 34096 transitions. [2022-07-21 04:53:15,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-21 04:53:15,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:15,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:15,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:53:15,449 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:15,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1068301886, now seen corresponding path program 1 times [2022-07-21 04:53:15,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:15,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034860302] [2022-07-21 04:53:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:15,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:53:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:53:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:53:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:53:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:53:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:53:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 04:53:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 04:53:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 04:53:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 04:53:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 04:53:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 04:53:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 04:53:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:53:15,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:15,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034860302] [2022-07-21 04:53:15,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034860302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:15,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:15,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298045464] [2022-07-21 04:53:15,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:15,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:15,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:15,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:15,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:15,696 INFO L87 Difference]: Start difference. First operand 20085 states and 34096 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:18,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:18,771 INFO L93 Difference]: Finished difference Result 53278 states and 91938 transitions. [2022-07-21 04:53:18,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:18,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2022-07-21 04:53:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:18,907 INFO L225 Difference]: With dead ends: 53278 [2022-07-21 04:53:18,907 INFO L226 Difference]: Without dead ends: 36093 [2022-07-21 04:53:18,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:18,956 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 1476 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:18,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1554 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 04:53:18,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36093 states. [2022-07-21 04:53:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36093 to 35891. [2022-07-21 04:53:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35891 states, 30129 states have (on average 1.6182083706727737) internal successors, (48755), 30137 states have internal predecessors, (48755), 5732 states have call successors, (5732), 25 states have call predecessors, (5732), 29 states have return successors, (6345), 5730 states have call predecessors, (6345), 5731 states have call successors, (6345) [2022-07-21 04:53:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35891 states to 35891 states and 60832 transitions. [2022-07-21 04:53:21,000 INFO L78 Accepts]: Start accepts. Automaton has 35891 states and 60832 transitions. Word has length 169 [2022-07-21 04:53:21,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:21,000 INFO L495 AbstractCegarLoop]: Abstraction has 35891 states and 60832 transitions. [2022-07-21 04:53:21,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 04:53:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 35891 states and 60832 transitions. [2022-07-21 04:53:21,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-21 04:53:21,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:21,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:21,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:53:21,265 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash -992614041, now seen corresponding path program 1 times [2022-07-21 04:53:21,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:21,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103531662] [2022-07-21 04:53:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:53:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:53:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:53:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:53:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:53:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:53:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 04:53:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 04:53:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 04:53:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 04:53:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:21,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:53:21,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:21,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103531662] [2022-07-21 04:53:21,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103531662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:21,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:21,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:21,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865562202] [2022-07-21 04:53:21,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:21,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:21,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:21,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:21,381 INFO L87 Difference]: Start difference. First operand 35891 states and 60832 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:25,452 INFO L93 Difference]: Finished difference Result 98125 states and 168497 transitions. [2022-07-21 04:53:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2022-07-21 04:53:25,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:25,653 INFO L225 Difference]: With dead ends: 98125 [2022-07-21 04:53:25,653 INFO L226 Difference]: Without dead ends: 66090 [2022-07-21 04:53:25,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:25,720 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1460 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:25,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1580 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 04:53:25,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66090 states. [2022-07-21 04:53:29,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66090 to 65888. [2022-07-21 04:53:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65888 states, 55613 states have (on average 1.6141549637674644) internal successors, (89768), 55621 states have internal predecessors, (89768), 10245 states have call successors, (10245), 25 states have call predecessors, (10245), 29 states have return successors, (11390), 10243 states have call predecessors, (11390), 10244 states have call successors, (11390) [2022-07-21 04:53:29,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65888 states to 65888 states and 111403 transitions. [2022-07-21 04:53:29,271 INFO L78 Accepts]: Start accepts. Automaton has 65888 states and 111403 transitions. Word has length 151 [2022-07-21 04:53:29,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:29,272 INFO L495 AbstractCegarLoop]: Abstraction has 65888 states and 111403 transitions. [2022-07-21 04:53:29,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 65888 states and 111403 transitions. [2022-07-21 04:53:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 04:53:29,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:29,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:29,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 04:53:29,335 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:29,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 177741048, now seen corresponding path program 1 times [2022-07-21 04:53:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:29,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471682661] [2022-07-21 04:53:29,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:29,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:53:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:53:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:53:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:53:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:53:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 04:53:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 04:53:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 04:53:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 04:53:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 04:53:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 04:53:29,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:29,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471682661] [2022-07-21 04:53:29,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471682661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:29,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:29,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:53:29,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329247535] [2022-07-21 04:53:29,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:29,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:53:29,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:29,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:53:29,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:53:29,426 INFO L87 Difference]: Start difference. First operand 65888 states and 111403 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:35,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:53:35,590 INFO L93 Difference]: Finished difference Result 123786 states and 212930 transitions. [2022-07-21 04:53:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:53:35,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2022-07-21 04:53:35,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:53:35,987 INFO L225 Difference]: With dead ends: 123786 [2022-07-21 04:53:35,988 INFO L226 Difference]: Without dead ends: 123578 [2022-07-21 04:53:36,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:53:36,035 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1479 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:53:36,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1558 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 04:53:36,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123578 states. [2022-07-21 04:53:41,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123578 to 123376. [2022-07-21 04:53:42,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123376 states, 104733 states have (on average 1.6090439498534368) internal successors, (168520), 104741 states have internal predecessors, (168520), 18613 states have call successors, (18613), 25 states have call predecessors, (18613), 29 states have return successors, (20804), 18611 states have call predecessors, (20804), 18612 states have call successors, (20804) [2022-07-21 04:53:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123376 states to 123376 states and 207937 transitions. [2022-07-21 04:53:42,800 INFO L78 Accepts]: Start accepts. Automaton has 123376 states and 207937 transitions. Word has length 152 [2022-07-21 04:53:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:53:42,800 INFO L495 AbstractCegarLoop]: Abstraction has 123376 states and 207937 transitions. [2022-07-21 04:53:42,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 04:53:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 123376 states and 207937 transitions. [2022-07-21 04:53:42,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-21 04:53:42,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:53:42,858 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:53:42,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 04:53:42,858 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:53:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:53:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 211825904, now seen corresponding path program 1 times [2022-07-21 04:53:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:53:42,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969104770] [2022-07-21 04:53:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:53:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:53:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:53:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:53:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:53:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:53:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:53:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:53:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:53:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:53:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:53:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:53:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:53:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 04:53:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:53:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 04:53:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 04:53:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 04:53:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 04:53:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 04:53:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 04:53:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:53:42,997 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 04:53:42,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:53:42,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969104770] [2022-07-21 04:53:42,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969104770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:53:42,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:53:42,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 04:53:42,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619141960] [2022-07-21 04:53:42,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:53:42,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 04:53:42,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:53:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 04:53:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:53:43,000 INFO L87 Difference]: Start difference. First operand 123376 states and 207937 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19)