./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_product20.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 d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:15:36,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:15:36,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:15:36,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:15:36,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:15:36,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:15:36,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:15:36,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:15:36,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:15:36,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:15:36,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:15:36,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:15:36,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:15:36,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:15:36,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:15:36,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:15:36,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:15:36,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:15:36,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:15:36,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:15:36,895 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:15:36,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:15:36,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:15:36,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:15:36,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:15:36,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:15:36,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:15:36,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:15:36,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:15:36,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:15:36,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:15:36,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:15:36,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:15:36,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:15:36,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:15:36,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:15:36,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:15:36,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:15:36,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:15:36,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:15:36,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:15:36,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:15:36,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:15:36,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:15:36,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:15:36,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:15:36,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:15:36,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:15:36,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:15:36,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:15:36,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:15:36,949 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:15:36,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:15:36,950 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:15:36,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:15:36,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:15:36,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:15:36,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:15:36,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:15:36,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:15:36,951 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:15:36,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:15:36,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:15:36,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:15:36,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:15:36,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:15:36,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:15:36,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:15:36,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:15:36,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:15:36,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:15:36,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:15:36,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:15:36,954 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:15:36,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:15:36,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:15:36,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf [2022-07-19 17:15:37,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:15:37,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:15:37,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:15:37,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:15:37,212 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:15:37,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-07-19 17:15:37,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60da7ebe4/a6d469eafd924084b8c3cbb706e295e2/FLAG9324cb065 [2022-07-19 17:15:37,762 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:15:37,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2022-07-19 17:15:37,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60da7ebe4/a6d469eafd924084b8c3cbb706e295e2/FLAG9324cb065 [2022-07-19 17:15:38,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60da7ebe4/a6d469eafd924084b8c3cbb706e295e2 [2022-07-19 17:15:38,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:15:38,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:15:38,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:15:38,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:15:38,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:15:38,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:38,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367a48e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38, skipping insertion in model container [2022-07-19 17:15:38,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:38,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:15:38,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:15:38,755 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_product20.cil.c[56376,56389] [2022-07-19 17:15:38,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:15:38,821 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:15:38,891 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_product20.cil.c[56376,56389] [2022-07-19 17:15:38,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:15:38,944 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:15:38,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38 WrapperNode [2022-07-19 17:15:38,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:15:38,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:15:38,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:15:38,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:15:38,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:38,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,036 INFO L137 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 942 [2022-07-19 17:15:39,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:15:39,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:15:39,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:15:39,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:15:39,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:15:39,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:15:39,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:15:39,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:15:39,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (1/1) ... [2022-07-19 17:15:39,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:15:39,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:39,161 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) [2022-07-19 17:15:39,183 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 [2022-07-19 17:15:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-07-19 17:15:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-07-19 17:15:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-19 17:15:39,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-19 17:15:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-19 17:15:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-19 17:15:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-19 17:15:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-19 17:15:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-19 17:15:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-19 17:15:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-19 17:15:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-19 17:15:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-19 17:15:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-19 17:15:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-19 17:15:39,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-19 17:15:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-19 17:15:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-19 17:15:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-19 17:15:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-19 17:15:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-19 17:15:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-19 17:15:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-19 17:15:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-19 17:15:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-19 17:15:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-19 17:15:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-19 17:15:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:15:39,200 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-07-19 17:15:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-07-19 17:15:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-19 17:15:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-19 17:15:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-19 17:15:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-19 17:15:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-19 17:15:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-19 17:15:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-19 17:15:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-19 17:15:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-19 17:15:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-19 17:15:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-19 17:15:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-19 17:15:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-19 17:15:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-19 17:15:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-19 17:15:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-19 17:15:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:15:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-19 17:15:39,204 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-19 17:15:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-19 17:15:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-19 17:15:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:15:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:15:39,397 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:15:39,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:15:40,016 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:15:40,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:15:40,030 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:15:40,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:15:40 BoogieIcfgContainer [2022-07-19 17:15:40,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:15:40,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:15:40,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:15:40,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:15:40,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:15:38" (1/3) ... [2022-07-19 17:15:40,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2022184d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:15:40, skipping insertion in model container [2022-07-19 17:15:40,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:15:38" (2/3) ... [2022-07-19 17:15:40,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2022184d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:15:40, skipping insertion in model container [2022-07-19 17:15:40,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:15:40" (3/3) ... [2022-07-19 17:15:40,043 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2022-07-19 17:15:40,054 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:15:40,054 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:15:40,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:15:40,122 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@1782f3dc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57012701 [2022-07-19 17:15:40,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:15:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 293 states have (on average 1.5665529010238908) internal successors, (459), 298 states have internal predecessors, (459), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-07-19 17:15:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-19 17:15:40,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:40,155 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 17:15:40,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:40,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1319087550, now seen corresponding path program 1 times [2022-07-19 17:15:40,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:40,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210262413] [2022-07-19 17:15:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:40,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:15:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:15:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:15:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 17:15:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:15:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:15:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:15:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:15:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:15:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:15:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:15:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:15:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:15:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 17:15:40,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:40,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210262413] [2022-07-19 17:15:40,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210262413] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:15:40,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312046839] [2022-07-19 17:15:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:40,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:15:40,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:40,648 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) [2022-07-19 17:15:40,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:15:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:40,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 17:15:40,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:15:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 17:15:41,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:15:41,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312046839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:41,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:15:41,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-19 17:15:41,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366322718] [2022-07-19 17:15:41,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:41,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:15:41,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:41,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:15:41,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:15:41,054 INFO L87 Difference]: Start difference. First operand has 377 states, 293 states have (on average 1.5665529010238908) internal successors, (459), 298 states have internal predecessors, (459), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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) [2022-07-19 17:15:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:41,115 INFO L93 Difference]: Finished difference Result 561 states and 840 transitions. [2022-07-19 17:15:41,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:15:41,117 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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 123 [2022-07-19 17:15:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:41,130 INFO L225 Difference]: With dead ends: 561 [2022-07-19 17:15:41,130 INFO L226 Difference]: Without dead ends: 370 [2022-07-19 17:15:41,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:15:41,137 INFO L413 NwaCegarLoop]: 571 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, 571 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 [2022-07-19 17:15:41,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:15:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-07-19 17:15:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-07-19 17:15:41,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 287 states have (on average 1.5609756097560976) internal successors, (448), 291 states have internal predecessors, (448), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-07-19 17:15:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 563 transitions. [2022-07-19 17:15:41,199 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 563 transitions. Word has length 123 [2022-07-19 17:15:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:41,201 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 563 transitions. [2022-07-19 17:15:41,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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) [2022-07-19 17:15:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 563 transitions. [2022-07-19 17:15:41,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-19 17:15:41,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:41,206 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 17:15:41,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 17:15:41,416 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 [2022-07-19 17:15:41,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:41,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2065856411, now seen corresponding path program 1 times [2022-07-19 17:15:41,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:41,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012874184] [2022-07-19 17:15:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:41,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:15:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:15:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:15:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 17:15:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 17:15:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:15:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:15:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:15:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:15:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:15:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:15:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:15:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:15:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 17:15:41,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:41,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012874184] [2022-07-19 17:15:41,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012874184] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:15:41,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257280454] [2022-07-19 17:15:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:41,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:15:41,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:41,578 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) [2022-07-19 17:15:41,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:15:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:41,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 17:15:41,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:15:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 17:15:41,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:15:41,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257280454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:41,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:15:41,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:15:41,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519558343] [2022-07-19 17:15:41,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:41,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:15:41,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:41,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:15:41,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:15:41,912 INFO L87 Difference]: Start difference. First operand 370 states and 563 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-07-19 17:15:41,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:41,950 INFO L93 Difference]: Finished difference Result 551 states and 818 transitions. [2022-07-19 17:15:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:15:41,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 124 [2022-07-19 17:15:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:41,955 INFO L225 Difference]: With dead ends: 551 [2022-07-19 17:15:41,955 INFO L226 Difference]: Without dead ends: 373 [2022-07-19 17:15:41,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:15:41,957 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 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 [2022-07-19 17:15:41,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:15:41,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-07-19 17:15:41,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 372. [2022-07-19 17:15:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 289 states have (on average 1.5570934256055364) internal successors, (450), 293 states have internal predecessors, (450), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-07-19 17:15:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 565 transitions. [2022-07-19 17:15:41,993 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 565 transitions. Word has length 124 [2022-07-19 17:15:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:41,993 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 565 transitions. [2022-07-19 17:15:41,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-07-19 17:15:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 565 transitions. [2022-07-19 17:15:41,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-19 17:15:41,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:41,997 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] [2022-07-19 17:15:42,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 17:15:42,211 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 [2022-07-19 17:15:42,212 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:42,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:42,212 INFO L85 PathProgramCache]: Analyzing trace with hash -311582633, now seen corresponding path program 1 times [2022-07-19 17:15:42,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:42,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861028021] [2022-07-19 17:15:42,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:42,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:15:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:15:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:15:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:15:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:15:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:15:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:15:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:15:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:15:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:15:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:15:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:15:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:15:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:15:42,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:42,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861028021] [2022-07-19 17:15:42,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861028021] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:15:42,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965925548] [2022-07-19 17:15:42,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:42,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:15:42,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:42,384 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) [2022-07-19 17:15:42,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 17:15:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:42,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:15:42,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:15:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 17:15:42,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:15:42,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965925548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:42,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:15:42,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:15:42,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389350453] [2022-07-19 17:15:42,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:42,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:15:42,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:15:42,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:15:42,687 INFO L87 Difference]: Start difference. First operand 372 states and 565 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) [2022-07-19 17:15:42,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:42,715 INFO L93 Difference]: Finished difference Result 792 states and 1222 transitions. [2022-07-19 17:15:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:15:42,717 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 [2022-07-19 17:15:42,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:42,721 INFO L225 Difference]: With dead ends: 792 [2022-07-19 17:15:42,722 INFO L226 Difference]: Without dead ends: 447 [2022-07-19 17:15:42,723 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 [2022-07-19 17:15:42,724 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 134 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1100 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 [2022-07-19 17:15:42,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1100 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:15:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-07-19 17:15:42,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2022-07-19 17:15:42,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 342 states have (on average 1.5760233918128654) internal successors, (539), 346 states have internal predecessors, (539), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-19 17:15:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 682 transitions. [2022-07-19 17:15:42,751 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 682 transitions. Word has length 133 [2022-07-19 17:15:42,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:42,751 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 682 transitions. [2022-07-19 17:15:42,751 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) [2022-07-19 17:15:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 682 transitions. [2022-07-19 17:15:42,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 17:15:42,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:42,755 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] [2022-07-19 17:15:42,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 17:15:42,959 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 [2022-07-19 17:15:42,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:42,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:42,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1676584718, now seen corresponding path program 1 times [2022-07-19 17:15:42,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:42,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094439078] [2022-07-19 17:15:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:42,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:15:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:15:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:15:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 17:15:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:15:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:15:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:15:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:15:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:15:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:15:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:15:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 17:15:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:15:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:15:43,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:43,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094439078] [2022-07-19 17:15:43,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094439078] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:15:43,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778921201] [2022-07-19 17:15:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:43,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:15:43,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:43,127 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) [2022-07-19 17:15:43,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 17:15:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:15:43,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:15:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-19 17:15:43,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:15:43,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778921201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:43,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:15:43,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-19 17:15:43,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525437862] [2022-07-19 17:15:43,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:43,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:15:43,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:43,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:15:43,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:15:43,527 INFO L87 Difference]: Start difference. First operand 439 states and 682 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) [2022-07-19 17:15:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:43,608 INFO L93 Difference]: Finished difference Result 869 states and 1354 transitions. [2022-07-19 17:15:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:15:43,609 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 [2022-07-19 17:15:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:43,614 INFO L225 Difference]: With dead ends: 869 [2022-07-19 17:15:43,614 INFO L226 Difference]: Without dead ends: 441 [2022-07-19 17:15:43,616 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 [2022-07-19 17:15:43,619 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 152 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2041 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 [2022-07-19 17:15:43,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2041 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:15:43,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-07-19 17:15:43,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-07-19 17:15:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 343 states have (on average 1.5743440233236152) internal successors, (540), 348 states have internal predecessors, (540), 72 states have call successors, (72), 24 states have call predecessors, (72), 25 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2022-07-19 17:15:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 685 transitions. [2022-07-19 17:15:43,655 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 685 transitions. Word has length 134 [2022-07-19 17:15:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:43,656 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 685 transitions. [2022-07-19 17:15:43,656 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) [2022-07-19 17:15:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 685 transitions. [2022-07-19 17:15:43,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-19 17:15:43,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:43,659 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 17:15:43,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 17:15:43,889 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 [2022-07-19 17:15:43,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1847707309, now seen corresponding path program 1 times [2022-07-19 17:15:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442804607] [2022-07-19 17:15:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:43,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:15:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:15:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:15:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:15:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:15:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:15:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:15:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:15:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:15:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:15:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 17:15:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-19 17:15:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:15:44,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:44,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442804607] [2022-07-19 17:15:44,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442804607] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:15:44,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914304504] [2022-07-19 17:15:44,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:44,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:15:44,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:44,041 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) [2022-07-19 17:15:44,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 17:15:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 17:15:44,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:15:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-19 17:15:44,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:15:44,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914304504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:44,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:15:44,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 17:15:44,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981323585] [2022-07-19 17:15:44,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:44,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:15:44,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:44,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:15:44,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:15:44,359 INFO L87 Difference]: Start difference. First operand 441 states and 685 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 17:15:44,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:44,419 INFO L93 Difference]: Finished difference Result 871 states and 1359 transitions. [2022-07-19 17:15:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:15:44,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2022-07-19 17:15:44,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:44,423 INFO L225 Difference]: With dead ends: 871 [2022-07-19 17:15:44,423 INFO L226 Difference]: Without dead ends: 443 [2022-07-19 17:15:44,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-19 17:15:44,425 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 151 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2030 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 [2022-07-19 17:15:44,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2030 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:15:44,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-19 17:15:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-07-19 17:15:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 344 states have (on average 1.572674418604651) internal successors, (541), 350 states have internal predecessors, (541), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-07-19 17:15:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 691 transitions. [2022-07-19 17:15:44,444 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 691 transitions. Word has length 135 [2022-07-19 17:15:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:44,445 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 691 transitions. [2022-07-19 17:15:44,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 17:15:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 691 transitions. [2022-07-19 17:15:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-19 17:15:44,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:44,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:15:44,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 17:15:44,675 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 [2022-07-19 17:15:44,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:44,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -34517267, now seen corresponding path program 1 times [2022-07-19 17:15:44,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:44,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881771376] [2022-07-19 17:15:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:44,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 17:15:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:15:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:15:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:15:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:15:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:15:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:15:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:15:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:15:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 17:15:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:15:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 17:15:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 17:15:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-19 17:15:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-19 17:15:44,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:44,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881771376] [2022-07-19 17:15:44,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881771376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:44,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:15:44,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:15:44,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206729164] [2022-07-19 17:15:44,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:44,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:15:44,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:44,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:15:44,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:15:44,820 INFO L87 Difference]: Start difference. First operand 443 states and 691 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 17:15:46,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:46,562 INFO L93 Difference]: Finished difference Result 976 states and 1544 transitions. [2022-07-19 17:15:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:15:46,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2022-07-19 17:15:46,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:46,569 INFO L225 Difference]: With dead ends: 976 [2022-07-19 17:15:46,569 INFO L226 Difference]: Without dead ends: 556 [2022-07-19 17:15:46,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:15:46,574 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1342 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:15:46,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 1588 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 17:15:46,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-07-19 17:15:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 443. [2022-07-19 17:15:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 344 states have (on average 1.572674418604651) internal successors, (541), 350 states have internal predecessors, (541), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2022-07-19 17:15:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 690 transitions. [2022-07-19 17:15:46,605 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 690 transitions. Word has length 155 [2022-07-19 17:15:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:46,606 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 690 transitions. [2022-07-19 17:15:46,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 17:15:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 690 transitions. [2022-07-19 17:15:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-19 17:15:46,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:46,609 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] [2022-07-19 17:15:46,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:15:46,609 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash 820017456, now seen corresponding path program 2 times [2022-07-19 17:15:46,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:46,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218548379] [2022-07-19 17:15:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:46,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 17:15:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:15:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:15:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:15:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:15:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:15:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:15:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:15:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:15:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:15:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:15:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 17:15:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-19 17:15:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-19 17:15:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-19 17:15:46,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:46,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218548379] [2022-07-19 17:15:46,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218548379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:46,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:15:46,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:15:46,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105659642] [2022-07-19 17:15:46,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:46,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:15:46,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:46,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:15:46,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:15:46,722 INFO L87 Difference]: Start difference. First operand 443 states and 690 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 17:15:48,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:48,457 INFO L93 Difference]: Finished difference Result 978 states and 1547 transitions. [2022-07-19 17:15:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:15:48,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2022-07-19 17:15:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:48,463 INFO L225 Difference]: With dead ends: 978 [2022-07-19 17:15:48,463 INFO L226 Difference]: Without dead ends: 558 [2022-07-19 17:15:48,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:15:48,465 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 1329 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:15:48,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 1597 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 17:15:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-19 17:15:48,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 445. [2022-07-19 17:15:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 345 states have (on average 1.5710144927536231) internal successors, (542), 352 states have internal predecessors, (542), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2022-07-19 17:15:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 693 transitions. [2022-07-19 17:15:48,494 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 693 transitions. Word has length 156 [2022-07-19 17:15:48,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:48,495 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 693 transitions. [2022-07-19 17:15:48,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 17:15:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 693 transitions. [2022-07-19 17:15:48,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-19 17:15:48,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:48,498 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] [2022-07-19 17:15:48,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:15:48,499 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:48,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1329272280, now seen corresponding path program 1 times [2022-07-19 17:15:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:48,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835031900] [2022-07-19 17:15:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:15:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:15:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:15:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:15:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:15:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:15:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:15:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:15:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:15:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:15:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:15:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:15:48,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:48,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835031900] [2022-07-19 17:15:48,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835031900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:48,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:15:48,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:15:48,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103389474] [2022-07-19 17:15:48,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:48,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:15:48,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:48,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:15:48,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:15:48,659 INFO L87 Difference]: Start difference. First operand 445 states and 693 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) [2022-07-19 17:15:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:50,972 INFO L93 Difference]: Finished difference Result 976 states and 1542 transitions. [2022-07-19 17:15:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:15:50,972 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 [2022-07-19 17:15:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:50,976 INFO L225 Difference]: With dead ends: 976 [2022-07-19 17:15:50,976 INFO L226 Difference]: Without dead ends: 558 [2022-07-19 17:15:50,978 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 [2022-07-19 17:15:50,978 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 1473 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3618 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 4165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 3618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:15:50,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1953 Invalid, 4165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 3618 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 17:15:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-19 17:15:51,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 445. [2022-07-19 17:15:51,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 345 states have (on average 1.5710144927536231) internal successors, (542), 352 states have internal predecessors, (542), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-07-19 17:15:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 692 transitions. [2022-07-19 17:15:51,003 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 692 transitions. Word has length 138 [2022-07-19 17:15:51,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:51,003 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 692 transitions. [2022-07-19 17:15:51,004 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) [2022-07-19 17:15:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 692 transitions. [2022-07-19 17:15:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-19 17:15:51,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:51,006 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, 1, 1] [2022-07-19 17:15:51,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:15:51,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1553991790, now seen corresponding path program 2 times [2022-07-19 17:15:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:51,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885561199] [2022-07-19 17:15:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:15:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:15:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:15:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:15:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:15:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:15:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:15:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:15:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:15:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:15:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:15:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:15:51,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:51,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885561199] [2022-07-19 17:15:51,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885561199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:51,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:15:51,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:15:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857442981] [2022-07-19 17:15:51,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:51,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:15:51,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:51,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:15:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:15:51,170 INFO L87 Difference]: Start difference. First operand 445 states and 692 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 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) [2022-07-19 17:15:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:53,340 INFO L93 Difference]: Finished difference Result 978 states and 1548 transitions. [2022-07-19 17:15:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:15:53,341 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 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 139 [2022-07-19 17:15:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:53,344 INFO L225 Difference]: With dead ends: 978 [2022-07-19 17:15:53,344 INFO L226 Difference]: Without dead ends: 560 [2022-07-19 17:15:53,346 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 [2022-07-19 17:15:53,347 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1469 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3616 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 4170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 3616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:15:53,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 1951 Invalid, 4170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 3616 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 17:15:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-07-19 17:15:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 447. [2022-07-19 17:15:53,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 346 states have (on average 1.569364161849711) internal successors, (543), 354 states have internal predecessors, (543), 72 states have call successors, (72), 24 states have call predecessors, (72), 28 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-07-19 17:15:53,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 698 transitions. [2022-07-19 17:15:53,372 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 698 transitions. Word has length 139 [2022-07-19 17:15:53,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:53,372 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 698 transitions. [2022-07-19 17:15:53,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 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) [2022-07-19 17:15:53,373 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 698 transitions. [2022-07-19 17:15:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-19 17:15:53,375 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:53,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:15:53,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:15:53,376 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1990999639, now seen corresponding path program 1 times [2022-07-19 17:15:53,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:53,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874640777] [2022-07-19 17:15:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:53,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:15:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:15:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:15:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:15:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:15:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:15:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:15:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:15:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:15:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:15:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 17:15:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:15:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 17:15:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 17:15:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-19 17:15:53,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:53,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874640777] [2022-07-19 17:15:53,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874640777] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:15:53,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710250369] [2022-07-19 17:15:53,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:53,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:15:53,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:15:53,526 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) [2022-07-19 17:15:53,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 17:15:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:53,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:15:53,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:15:53,854 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:15:53,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:15:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:15:53,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710250369] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:15:53,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:15:53,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-19 17:15:53,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781478008] [2022-07-19 17:15:53,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:15:53,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-19 17:15:53,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-19 17:15:53,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:15:53,956 INFO L87 Difference]: Start difference. First operand 447 states and 698 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-07-19 17:15:57,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:57,239 INFO L93 Difference]: Finished difference Result 1837 states and 3106 transitions. [2022-07-19 17:15:57,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 17:15:57,242 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) Word has length 159 [2022-07-19 17:15:57,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:57,249 INFO L225 Difference]: With dead ends: 1837 [2022-07-19 17:15:57,250 INFO L226 Difference]: Without dead ends: 1421 [2022-07-19 17:15:57,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-19 17:15:57,252 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 3644 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 5218 mSolverCounterSat, 1391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 6609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1391 IncrementalHoareTripleChecker+Valid, 5218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:15:57,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 4416 Invalid, 6609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1391 Valid, 5218 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-19 17:15:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-07-19 17:15:57,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 865. [2022-07-19 17:15:57,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 685 states have (on average 1.618978102189781) internal successors, (1109), 693 states have internal predecessors, (1109), 151 states have call successors, (151), 24 states have call predecessors, (151), 28 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2022-07-19 17:15:57,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1432 transitions. [2022-07-19 17:15:57,313 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1432 transitions. Word has length 159 [2022-07-19 17:15:57,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:57,314 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1432 transitions. [2022-07-19 17:15:57,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-07-19 17:15:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1432 transitions. [2022-07-19 17:15:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-19 17:15:57,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:57,320 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] [2022-07-19 17:15:57,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-19 17:15:57,543 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 [2022-07-19 17:15:57,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash -159108113, now seen corresponding path program 1 times [2022-07-19 17:15:57,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:57,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409830531] [2022-07-19 17:15:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:57,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:15:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:15:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:15:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:15:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:15:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:15:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:15:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:15:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 17:15:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:15:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 17:15:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:15:57,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:57,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409830531] [2022-07-19 17:15:57,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409830531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:57,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:15:57,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:15:57,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783065809] [2022-07-19 17:15:57,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:57,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:15:57,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:57,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:15:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:15:57,681 INFO L87 Difference]: Start difference. First operand 865 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-07-19 17:15:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:15:58,863 INFO L93 Difference]: Finished difference Result 2163 states and 3674 transitions. [2022-07-19 17:15:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:15:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 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 143 [2022-07-19 17:15:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:15:58,870 INFO L225 Difference]: With dead ends: 2163 [2022-07-19 17:15:58,870 INFO L226 Difference]: Without dead ends: 1376 [2022-07-19 17:15:58,873 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 [2022-07-19 17:15:58,874 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 1334 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:15:58,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 1444 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:15:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2022-07-19 17:15:58,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1255. [2022-07-19 17:15:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 996 states have (on average 1.6355421686746987) internal successors, (1629), 1004 states have internal predecessors, (1629), 230 states have call successors, (230), 24 states have call predecessors, (230), 28 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2022-07-19 17:15:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 2120 transitions. [2022-07-19 17:15:58,965 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 2120 transitions. Word has length 143 [2022-07-19 17:15:58,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:15:58,965 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 2120 transitions. [2022-07-19 17:15:58,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-07-19 17:15:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 2120 transitions. [2022-07-19 17:15:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 17:15:58,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:15:58,973 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] [2022-07-19 17:15:58,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:15:58,973 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:15:58,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:15:58,973 INFO L85 PathProgramCache]: Analyzing trace with hash -658341585, now seen corresponding path program 1 times [2022-07-19 17:15:58,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:15:58,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646229614] [2022-07-19 17:15:58,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:15:58,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:15:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:15:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:15:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:15:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:15:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:15:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:15:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:15:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:15:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:15:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:15:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:15:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:15:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:15:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:15:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:15:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 17:15:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:15:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:15:59,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:15:59,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646229614] [2022-07-19 17:15:59,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646229614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:15:59,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:15:59,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:15:59,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515738115] [2022-07-19 17:15:59,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:15:59,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:15:59,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:15:59,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:15:59,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:15:59,076 INFO L87 Difference]: Start difference. First operand 1255 states and 2120 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) [2022-07-19 17:16:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:00,373 INFO L93 Difference]: Finished difference Result 3137 states and 5383 transitions. [2022-07-19 17:16:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:00,374 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 [2022-07-19 17:16:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:00,383 INFO L225 Difference]: With dead ends: 3137 [2022-07-19 17:16:00,383 INFO L226 Difference]: Without dead ends: 2013 [2022-07-19 17:16:00,386 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 [2022-07-19 17:16:00,387 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 1330 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:00,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1397 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:16:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-07-19 17:16:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1892. [2022-07-19 17:16:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1514 states have (on average 1.6426684280052841) internal successors, (2487), 1522 states have internal predecessors, (2487), 349 states have call successors, (349), 24 states have call predecessors, (349), 28 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2022-07-19 17:16:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 3216 transitions. [2022-07-19 17:16:00,501 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 3216 transitions. Word has length 144 [2022-07-19 17:16:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:00,501 INFO L495 AbstractCegarLoop]: Abstraction has 1892 states and 3216 transitions. [2022-07-19 17:16:00,502 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) [2022-07-19 17:16:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 3216 transitions. [2022-07-19 17:16:00,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-19 17:16:00,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:00,512 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] [2022-07-19 17:16:00,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:16:00,512 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:00,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1798639171, now seen corresponding path program 1 times [2022-07-19 17:16:00,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:00,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959645186] [2022-07-19 17:16:00,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:00,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:16:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:16:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:16:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:16:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:16:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:16:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:16:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:16:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:16:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-19 17:16:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:16:00,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:00,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959645186] [2022-07-19 17:16:00,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959645186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:00,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:00,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:00,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012279655] [2022-07-19 17:16:00,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:00,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:00,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:00,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:00,624 INFO L87 Difference]: Start difference. First operand 1892 states and 3216 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 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) [2022-07-19 17:16:01,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:01,817 INFO L93 Difference]: Finished difference Result 4617 states and 7994 transitions. [2022-07-19 17:16:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:01,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 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 145 [2022-07-19 17:16:01,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:01,828 INFO L225 Difference]: With dead ends: 4617 [2022-07-19 17:16:01,829 INFO L226 Difference]: Without dead ends: 2991 [2022-07-19 17:16:01,833 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 [2022-07-19 17:16:01,834 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1327 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:01,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1402 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:16:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-07-19 17:16:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2870. [2022-07-19 17:16:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2330 states have (on average 1.6484978540772532) internal successors, (3841), 2338 states have internal predecessors, (3841), 511 states have call successors, (511), 24 states have call predecessors, (511), 28 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2022-07-19 17:16:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 4910 transitions. [2022-07-19 17:16:02,013 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 4910 transitions. Word has length 145 [2022-07-19 17:16:02,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:02,014 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 4910 transitions. [2022-07-19 17:16:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 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) [2022-07-19 17:16:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 4910 transitions. [2022-07-19 17:16:02,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-19 17:16:02,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:02,028 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] [2022-07-19 17:16:02,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:16:02,028 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:02,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:02,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1729968346, now seen corresponding path program 1 times [2022-07-19 17:16:02,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:02,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008123737] [2022-07-19 17:16:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:02,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:16:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:16:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:16:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:16:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:16:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:16:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:16:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:16:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:16:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-19 17:16:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 17:16:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 17:16:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-19 17:16:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:02,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:02,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008123737] [2022-07-19 17:16:02,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008123737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:02,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:02,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827373710] [2022-07-19 17:16:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:02,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:02,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:02,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:02,133 INFO L87 Difference]: Start difference. First operand 2870 states and 4910 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) [2022-07-19 17:16:03,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:03,363 INFO L93 Difference]: Finished difference Result 6956 states and 12129 transitions. [2022-07-19 17:16:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:03,364 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 [2022-07-19 17:16:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:03,384 INFO L225 Difference]: With dead ends: 6956 [2022-07-19 17:16:03,384 INFO L226 Difference]: Without dead ends: 4571 [2022-07-19 17:16:03,391 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 [2022-07-19 17:16:03,392 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 1320 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:03,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 1404 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:16:03,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2022-07-19 17:16:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4450. [2022-07-19 17:16:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 3665 states have (on average 1.6526603001364257) internal successors, (6057), 3673 states have internal predecessors, (6057), 756 states have call successors, (756), 24 states have call predecessors, (756), 28 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2022-07-19 17:16:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 7642 transitions. [2022-07-19 17:16:03,702 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 7642 transitions. Word has length 165 [2022-07-19 17:16:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:03,702 INFO L495 AbstractCegarLoop]: Abstraction has 4450 states and 7642 transitions. [2022-07-19 17:16:03,703 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) [2022-07-19 17:16:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 7642 transitions. [2022-07-19 17:16:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-19 17:16:03,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:03,722 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] [2022-07-19 17:16:03,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:16:03,722 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:03,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash -452552879, now seen corresponding path program 1 times [2022-07-19 17:16:03,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:03,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415407952] [2022-07-19 17:16:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:03,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:16:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:16:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:16:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:16:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:16:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:16:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:16:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:16:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 17:16:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:16:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-19 17:16:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-19 17:16:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-19 17:16:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:03,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:03,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415407952] [2022-07-19 17:16:03,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415407952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:03,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:03,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555830701] [2022-07-19 17:16:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:03,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:03,828 INFO L87 Difference]: Start difference. First operand 4450 states and 7642 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) [2022-07-19 17:16:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:05,303 INFO L93 Difference]: Finished difference Result 11127 states and 19458 transitions. [2022-07-19 17:16:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:05,303 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 [2022-07-19 17:16:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:05,335 INFO L225 Difference]: With dead ends: 11127 [2022-07-19 17:16:05,336 INFO L226 Difference]: Without dead ends: 7414 [2022-07-19 17:16:05,346 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 [2022-07-19 17:16:05,347 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 1316 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:05,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1438 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:16:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2022-07-19 17:16:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7293. [2022-07-19 17:16:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 6015 states have (on average 1.6485453034081463) internal successors, (9916), 6023 states have internal predecessors, (9916), 1249 states have call successors, (1249), 24 states have call predecessors, (1249), 28 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2022-07-19 17:16:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12531 transitions. [2022-07-19 17:16:05,847 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12531 transitions. Word has length 166 [2022-07-19 17:16:05,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:05,848 INFO L495 AbstractCegarLoop]: Abstraction has 7293 states and 12531 transitions. [2022-07-19 17:16:05,860 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) [2022-07-19 17:16:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12531 transitions. [2022-07-19 17:16:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-19 17:16:05,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:05,889 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] [2022-07-19 17:16:05,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:16:05,889 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:05,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1128633898, now seen corresponding path program 1 times [2022-07-19 17:16:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:05,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119719610] [2022-07-19 17:16:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:05,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:16:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:16:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:16:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:16:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:16:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:16:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:16:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-19 17:16:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 17:16:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-19 17:16:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-19 17:16:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-19 17:16:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-19 17:16:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:05,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119719610] [2022-07-19 17:16:05,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119719610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:05,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:05,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206465477] [2022-07-19 17:16:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:05,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:05,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:05,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:05,995 INFO L87 Difference]: Start difference. First operand 7293 states and 12531 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) [2022-07-19 17:16:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:07,499 INFO L93 Difference]: Finished difference Result 18547 states and 32422 transitions. [2022-07-19 17:16:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:07,500 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 [2022-07-19 17:16:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:07,604 INFO L225 Difference]: With dead ends: 18547 [2022-07-19 17:16:07,605 INFO L226 Difference]: Without dead ends: 12393 [2022-07-19 17:16:07,621 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 [2022-07-19 17:16:07,622 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 1321 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:07,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 1408 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:16:07,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12393 states. [2022-07-19 17:16:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12393 to 12272. [2022-07-19 17:16:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12272 states, 10172 states have (on average 1.6483484073928432) internal successors, (16767), 10180 states have internal predecessors, (16767), 2071 states have call successors, (2071), 24 states have call predecessors, (2071), 28 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2022-07-19 17:16:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12272 states to 12272 states and 21104 transitions. [2022-07-19 17:16:08,450 INFO L78 Accepts]: Start accepts. Automaton has 12272 states and 21104 transitions. Word has length 167 [2022-07-19 17:16:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:08,450 INFO L495 AbstractCegarLoop]: Abstraction has 12272 states and 21104 transitions. [2022-07-19 17:16:08,450 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) [2022-07-19 17:16:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 12272 states and 21104 transitions. [2022-07-19 17:16:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-19 17:16:08,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:08,488 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] [2022-07-19 17:16:08,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:16:08,488 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:08,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1234346235, now seen corresponding path program 1 times [2022-07-19 17:16:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:08,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242525883] [2022-07-19 17:16:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:16:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:16:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:16:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:16:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:16:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:16:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:16:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:16:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 17:16:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 17:16:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:16:08,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:08,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242525883] [2022-07-19 17:16:08,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242525883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:08,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:08,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:08,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025153977] [2022-07-19 17:16:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:08,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:08,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:08,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:08,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:08,579 INFO L87 Difference]: Start difference. First operand 12272 states and 21104 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) [2022-07-19 17:16:10,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:10,377 INFO L93 Difference]: Finished difference Result 29505 states and 51282 transitions. [2022-07-19 17:16:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:10,377 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 [2022-07-19 17:16:10,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:10,453 INFO L225 Difference]: With dead ends: 29505 [2022-07-19 17:16:10,453 INFO L226 Difference]: Without dead ends: 19346 [2022-07-19 17:16:10,486 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 [2022-07-19 17:16:10,487 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1315 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:10,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1377 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:16:10,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19346 states. [2022-07-19 17:16:11,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19346 to 19225. [2022-07-19 17:16:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19225 states, 15922 states have (on average 1.6227232759703554) internal successors, (25837), 15930 states have internal predecessors, (25837), 3274 states have call successors, (3274), 24 states have call predecessors, (3274), 28 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2022-07-19 17:16:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19225 states to 19225 states and 32724 transitions. [2022-07-19 17:16:11,601 INFO L78 Accepts]: Start accepts. Automaton has 19225 states and 32724 transitions. Word has length 149 [2022-07-19 17:16:11,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:11,602 INFO L495 AbstractCegarLoop]: Abstraction has 19225 states and 32724 transitions. [2022-07-19 17:16:11,602 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) [2022-07-19 17:16:11,602 INFO L276 IsEmpty]: Start isEmpty. Operand 19225 states and 32724 transitions. [2022-07-19 17:16:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-19 17:16:11,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:11,639 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] [2022-07-19 17:16:11,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 17:16:11,640 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:11,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1467090805, now seen corresponding path program 1 times [2022-07-19 17:16:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:11,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905843449] [2022-07-19 17:16:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:16:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:16:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:16:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:16:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:16:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:16:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:16:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:16:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 17:16:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-19 17:16:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-19 17:16:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-19 17:16:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-19 17:16:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:11,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:11,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905843449] [2022-07-19 17:16:11,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905843449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:11,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:11,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109299325] [2022-07-19 17:16:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:11,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:11,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:11,749 INFO L87 Difference]: Start difference. First operand 19225 states and 32724 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) [2022-07-19 17:16:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:14,246 INFO L93 Difference]: Finished difference Result 50937 states and 88200 transitions. [2022-07-19 17:16:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:14,247 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 [2022-07-19 17:16:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:14,600 INFO L225 Difference]: With dead ends: 50937 [2022-07-19 17:16:14,600 INFO L226 Difference]: Without dead ends: 34467 [2022-07-19 17:16:14,638 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 [2022-07-19 17:16:14,638 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 1310 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:14,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1409 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:16:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34467 states. [2022-07-19 17:16:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34467 to 34346. [2022-07-19 17:16:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34346 states, 28593 states have (on average 1.6193823663134335) internal successors, (46303), 28601 states have internal predecessors, (46303), 5724 states have call successors, (5724), 24 states have call predecessors, (5724), 28 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2022-07-19 17:16:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34346 states to 34346 states and 58364 transitions. [2022-07-19 17:16:16,460 INFO L78 Accepts]: Start accepts. Automaton has 34346 states and 58364 transitions. Word has length 169 [2022-07-19 17:16:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:16,461 INFO L495 AbstractCegarLoop]: Abstraction has 34346 states and 58364 transitions. [2022-07-19 17:16:16,461 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) [2022-07-19 17:16:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 34346 states and 58364 transitions. [2022-07-19 17:16:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-19 17:16:16,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:16,506 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] [2022-07-19 17:16:16,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:16:16,507 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:16,507 INFO L85 PathProgramCache]: Analyzing trace with hash -785135819, now seen corresponding path program 1 times [2022-07-19 17:16:16,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:16,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231937698] [2022-07-19 17:16:16,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:16,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:16:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:16:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:16:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:16:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:16:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:16:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:16:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:16:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 17:16:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:16:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-19 17:16:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-19 17:16:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-19 17:16:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:16,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:16,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231937698] [2022-07-19 17:16:16,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231937698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:16,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:16,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610466562] [2022-07-19 17:16:16,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:16,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:16,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:16,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:16,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:16,839 INFO L87 Difference]: Start difference. First operand 34346 states and 58364 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-07-19 17:16:20,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:20,512 INFO L93 Difference]: Finished difference Result 93809 states and 161599 transitions. [2022-07-19 17:16:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:20,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 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 170 [2022-07-19 17:16:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:20,945 INFO L225 Difference]: With dead ends: 93809 [2022-07-19 17:16:20,946 INFO L226 Difference]: Without dead ends: 63134 [2022-07-19 17:16:21,022 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 [2022-07-19 17:16:21,023 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 1310 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:21,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1409 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:16:21,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2022-07-19 17:16:23,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 63013. [2022-07-19 17:16:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63013 states, 52747 states have (on average 1.6150302386865605) internal successors, (85188), 52755 states have internal predecessors, (85188), 10237 states have call successors, (10237), 24 states have call predecessors, (10237), 28 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2022-07-19 17:16:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63013 states to 63013 states and 106807 transitions. [2022-07-19 17:16:24,439 INFO L78 Accepts]: Start accepts. Automaton has 63013 states and 106807 transitions. Word has length 170 [2022-07-19 17:16:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:24,439 INFO L495 AbstractCegarLoop]: Abstraction has 63013 states and 106807 transitions. [2022-07-19 17:16:24,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-07-19 17:16:24,440 INFO L276 IsEmpty]: Start isEmpty. Operand 63013 states and 106807 transitions. [2022-07-19 17:16:24,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-19 17:16:24,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:24,503 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] [2022-07-19 17:16:24,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 17:16:24,504 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:24,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1459602155, now seen corresponding path program 1 times [2022-07-19 17:16:24,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668423632] [2022-07-19 17:16:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:24,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:16:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:16:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:16:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:16:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:16:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:16:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:16:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:16:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-19 17:16:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-19 17:16:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 17:16:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-19 17:16:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-19 17:16:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:24,601 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:24,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:24,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668423632] [2022-07-19 17:16:24,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668423632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:24,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:24,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:16:24,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601460578] [2022-07-19 17:16:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:24,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:16:24,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:16:24,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:16:24,604 INFO L87 Difference]: Start difference. First operand 63013 states and 106807 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-07-19 17:16:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:29,817 INFO L93 Difference]: Finished difference Result 118185 states and 203976 transitions. [2022-07-19 17:16:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:16:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 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 171 [2022-07-19 17:16:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:30,242 INFO L225 Difference]: With dead ends: 118185 [2022-07-19 17:16:30,243 INFO L226 Difference]: Without dead ends: 118007 [2022-07-19 17:16:30,290 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 [2022-07-19 17:16:30,291 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 1305 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:30,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 1413 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:16:30,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118007 states. [2022-07-19 17:16:35,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118007 to 117886. [2022-07-19 17:16:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117886 states, 99252 states have (on average 1.6095998065530166) internal successors, (159756), 99260 states have internal predecessors, (159756), 18605 states have call successors, (18605), 24 states have call predecessors, (18605), 28 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2022-07-19 17:16:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117886 states to 117886 states and 199157 transitions. [2022-07-19 17:16:36,319 INFO L78 Accepts]: Start accepts. Automaton has 117886 states and 199157 transitions. Word has length 171 [2022-07-19 17:16:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:36,319 INFO L495 AbstractCegarLoop]: Abstraction has 117886 states and 199157 transitions. [2022-07-19 17:16:36,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-07-19 17:16:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand 117886 states and 199157 transitions. [2022-07-19 17:16:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-19 17:16:36,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:36,385 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] [2022-07-19 17:16:36,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 17:16:36,385 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1307139350, now seen corresponding path program 1 times [2022-07-19 17:16:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:36,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676545364] [2022-07-19 17:16:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:16:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:16:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:16:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:16:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:16:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:16:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:16:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:16:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:16:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:16:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 17:16:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-19 17:16:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 17:16:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-19 17:16:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-19 17:16:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 17:16:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:16:36,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:36,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676545364] [2022-07-19 17:16:36,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676545364] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:36,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:16:36,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 17:16:36,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442017875] [2022-07-19 17:16:36,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:36,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 17:16:36,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:36,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 17:16:36,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:16:36,539 INFO L87 Difference]: Start difference. First operand 117886 states and 199157 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) [2022-07-19 17:16:47,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:47,403 INFO L93 Difference]: Finished difference Result 226922 states and 391268 transitions. [2022-07-19 17:16:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-19 17:16:47,404 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 172 [2022-07-19 17:16:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:48,392 INFO L225 Difference]: With dead ends: 226922 [2022-07-19 17:16:48,392 INFO L226 Difference]: Without dead ends: 226752 [2022-07-19 17:16:48,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-07-19 17:16:48,476 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 2721 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 3180 mSolverCounterSat, 1095 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 3180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:16:48,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2739 Valid, 2157 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1095 Valid, 3180 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 17:16:48,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226752 states.