./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product17.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_spec7_product17.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 cc6bd9a8e81eed69bb1e052a3e58ea0f1400924f4533cb09f3cdffebd7dfcd4d --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:16:53,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:16:53,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:16:53,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:16:53,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:16:53,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:16:53,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:16:53,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:16:53,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:16:53,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:16:53,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:16:53,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:16:53,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:16:53,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:16:53,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:16:53,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:16:53,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:16:53,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:16:53,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:16:53,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:16:53,286 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:16:53,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:16:53,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:16:53,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:16:53,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:16:53,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:16:53,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:16:53,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:16:53,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:16:53,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:16:53,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:16:53,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:16:53,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:16:53,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:16:53,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:16:53,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:16:53,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:16:53,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:16:53,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:16:53,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:16:53,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:16:53,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:16:53,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:16:53,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:16:53,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:16:53,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:16:53,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:16:53,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:16:53,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:16:53,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:16:53,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:16:53,336 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:16:53,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:16:53,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:16:53,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:16:53,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:16:53,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:16:53,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:16:53,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:16:53,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:16:53,338 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:16:53,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:16:53,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:16:53,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:16:53,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:16:53,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:16:53,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:16:53,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:16:53,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:16:53,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:16:53,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:16:53,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:16:53,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:16:53,342 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:16:53,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:16:53,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:16:53,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6bd9a8e81eed69bb1e052a3e58ea0f1400924f4533cb09f3cdffebd7dfcd4d [2022-07-19 17:16:53,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:16:53,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:16:53,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:16:53,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:16:53,612 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:16:53,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2022-07-19 17:16:53,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4dacf97/ac0fc5577ca8454e91bace798f11193d/FLAGb8f0acc05 [2022-07-19 17:16:54,206 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:16:54,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2022-07-19 17:16:54,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4dacf97/ac0fc5577ca8454e91bace798f11193d/FLAGb8f0acc05 [2022-07-19 17:16:54,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4dacf97/ac0fc5577ca8454e91bace798f11193d [2022-07-19 17:16:54,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:16:54,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:16:54,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:16:54,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:16:54,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:16:54,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:16:54" (1/1) ... [2022-07-19 17:16:54,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3e47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:54, skipping insertion in model container [2022-07-19 17:16:54,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:16:54" (1/1) ... [2022-07-19 17:16:54,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:16:54,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:16:54,985 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_spec7_product17.cil.c[48205,48218] [2022-07-19 17:16:55,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:16:55,068 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:16:55,143 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_spec7_product17.cil.c[48205,48218] [2022-07-19 17:16:55,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:16:55,187 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:16:55,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55 WrapperNode [2022-07-19 17:16:55,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:16:55,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:16:55,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:16:55,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:16:55,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,298 INFO L137 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 914 [2022-07-19 17:16:55,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:16:55,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:16:55,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:16:55,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:16:55,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:16:55,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:16:55,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:16:55,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:16:55,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (1/1) ... [2022-07-19 17:16:55,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:16:55,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:16:55,420 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 17:16:55,444 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 17:16:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-19 17:16:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-19 17:16:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-19 17:16:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-19 17:16:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-07-19 17:16:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-07-19 17:16:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-19 17:16:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-19 17:16:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-19 17:16:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-19 17:16:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-19 17:16:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-19 17:16:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-19 17:16:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-19 17:16:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-19 17:16:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-19 17:16:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-19 17:16:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-19 17:16:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-19 17:16:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-19 17:16:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-19 17:16:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-19 17:16:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-19 17:16:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:16:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-19 17:16:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-19 17:16:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-19 17:16:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-19 17:16:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-19 17:16:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-19 17:16:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-19 17:16:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-19 17:16:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-19 17:16:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-19 17:16:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-19 17:16:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-19 17:16:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-19 17:16:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-19 17:16:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-19 17:16:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-19 17:16:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:16:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-19 17:16:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-19 17:16:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-19 17:16:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-19 17:16:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:16:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:16:55,693 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:16:55,694 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:16:56,242 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:16:56,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:16:56,252 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:16:56,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:16:56 BoogieIcfgContainer [2022-07-19 17:16:56,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:16:56,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:16:56,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:16:56,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:16:56,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:16:54" (1/3) ... [2022-07-19 17:16:56,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c64d42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:16:56, skipping insertion in model container [2022-07-19 17:16:56,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:16:55" (2/3) ... [2022-07-19 17:16:56,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c64d42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:16:56, skipping insertion in model container [2022-07-19 17:16:56,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:16:56" (3/3) ... [2022-07-19 17:16:56,263 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec7_product17.cil.c [2022-07-19 17:16:56,276 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:16:56,276 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:16:56,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:16:56,336 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@35e601c7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@19ff6020 [2022-07-19 17:16:56,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:16:56,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 274 states have (on average 1.5875912408759123) internal successors, (435), 277 states have internal predecessors, (435), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-07-19 17:16:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 17:16:56,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:56,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:16:56,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:56,381 INFO L85 PathProgramCache]: Analyzing trace with hash -299076794, now seen corresponding path program 1 times [2022-07-19 17:16:56,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:56,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829539758] [2022-07-19 17:16:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:56,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:16:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:16:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:16:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 17:16:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:16:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:16:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:16:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:16:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:16:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:16:56,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:56,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829539758] [2022-07-19 17:16:56,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829539758] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:16:56,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806279882] [2022-07-19 17:16:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:16:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:16:56,919 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 17:16:56,949 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 17:16:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 17:16:57,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:16:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:16:57,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:16:57,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806279882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:57,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:16:57,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-19 17:16:57,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762451652] [2022-07-19 17:16:57,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:57,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:16:57,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:57,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:16:57,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:16:57,296 INFO L87 Difference]: Start difference. First operand has 345 states, 274 states have (on average 1.5875912408759123) internal successors, (435), 277 states have internal predecessors, (435), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:16:57,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:57,343 INFO L93 Difference]: Finished difference Result 502 states and 760 transitions. [2022-07-19 17:16:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:16:57,345 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2022-07-19 17:16:57,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:57,357 INFO L225 Difference]: With dead ends: 502 [2022-07-19 17:16:57,357 INFO L226 Difference]: Without dead ends: 338 [2022-07-19 17:16:57,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 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 17:16:57,364 INFO L413 NwaCegarLoop]: 527 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, 527 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 17:16:57,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:16:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-07-19 17:16:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-07-19 17:16:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 268 states have (on average 1.5820895522388059) internal successors, (424), 270 states have internal predecessors, (424), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-07-19 17:16:57,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions. [2022-07-19 17:16:57,420 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 95 [2022-07-19 17:16:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:57,422 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 519 transitions. [2022-07-19 17:16:57,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:16:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions. [2022-07-19 17:16:57,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 17:16:57,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:57,442 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:16:57,461 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 17:16:57,651 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 17:16:57,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:57,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:57,652 INFO L85 PathProgramCache]: Analyzing trace with hash 150434243, now seen corresponding path program 1 times [2022-07-19 17:16:57,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:57,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549436559] [2022-07-19 17:16:57,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:57,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:16:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:16:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:16:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 17:16:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 17:16:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:16:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:16:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:16:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:16:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:16:57,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:57,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549436559] [2022-07-19 17:16:57,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549436559] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:16:57,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181111617] [2022-07-19 17:16:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:16:57,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:16:57,876 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 17:16:57,878 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 17:16:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 17:16:58,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:16:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:16:58,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:16:58,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181111617] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:58,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:16:58,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:16:58,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940881264] [2022-07-19 17:16:58,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:58,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:16:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:16:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:16:58,140 INFO L87 Difference]: Start difference. First operand 338 states and 519 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:16:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:58,194 INFO L93 Difference]: Finished difference Result 492 states and 738 transitions. [2022-07-19 17:16:58,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:16:58,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2022-07-19 17:16:58,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:58,202 INFO L225 Difference]: With dead ends: 492 [2022-07-19 17:16:58,202 INFO L226 Difference]: Without dead ends: 341 [2022-07-19 17:16:58,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:16:58,209 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 1 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1032 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 17:16:58,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1032 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:16:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-19 17:16:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 340. [2022-07-19 17:16:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 270 states have (on average 1.5777777777777777) internal successors, (426), 272 states have internal predecessors, (426), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-07-19 17:16:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 521 transitions. [2022-07-19 17:16:58,243 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 521 transitions. Word has length 96 [2022-07-19 17:16:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:58,243 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 521 transitions. [2022-07-19 17:16:58,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:16:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 521 transitions. [2022-07-19 17:16:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-19 17:16:58,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:58,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:16:58,265 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 17:16:58,446 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 17:16:58,447 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash 765324620, now seen corresponding path program 1 times [2022-07-19 17:16:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:58,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124114834] [2022-07-19 17:16:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:58,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:16:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:16:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:16:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 17:16:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:16:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:16:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:16:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:16:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:16:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:16:58,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:58,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124114834] [2022-07-19 17:16:58,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124114834] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:16:58,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996810934] [2022-07-19 17:16:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:58,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:16:58,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:16:58,595 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 17:16:58,631 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 17:16:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:58,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:16:58,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:16:58,865 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:16:58,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:16:58,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996810934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:58,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:16:58,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:16:58,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269242286] [2022-07-19 17:16:58,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:58,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:16:58,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:58,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:16:58,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:16:58,868 INFO L87 Difference]: Start difference. First operand 340 states and 521 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:16:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:58,890 INFO L93 Difference]: Finished difference Result 723 states and 1126 transitions. [2022-07-19 17:16:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:16:58,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2022-07-19 17:16:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:58,893 INFO L225 Difference]: With dead ends: 723 [2022-07-19 17:16:58,893 INFO L226 Difference]: Without dead ends: 410 [2022-07-19 17:16:58,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:16:58,895 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 126 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1011 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 17:16:58,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1011 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:16:58,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-19 17:16:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 402. [2022-07-19 17:16:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 318 states have (on average 1.5943396226415094) internal successors, (507), 320 states have internal predecessors, (507), 62 states have call successors, (62), 21 states have call predecessors, (62), 21 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-19 17:16:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 630 transitions. [2022-07-19 17:16:58,915 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 630 transitions. Word has length 102 [2022-07-19 17:16:58,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:58,915 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 630 transitions. [2022-07-19 17:16:58,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:16:58,916 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 630 transitions. [2022-07-19 17:16:58,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 17:16:58,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:58,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:16:58,951 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 17:16:59,136 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 17:16:59,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:59,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1123916787, now seen corresponding path program 1 times [2022-07-19 17:16:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:59,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402517026] [2022-07-19 17:16:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:59,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:16:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:16:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:16:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 17:16:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:16:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:16:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:16:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:16:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:16:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:16:59,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:16:59,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402517026] [2022-07-19 17:16:59,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402517026] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:16:59,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616900311] [2022-07-19 17:16:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:59,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:16:59,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:16:59,296 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 17:16:59,298 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 17:16:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:16:59,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:16:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 17:16:59,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:16:59,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616900311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:16:59,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:16:59,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-19 17:16:59,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796305090] [2022-07-19 17:16:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:16:59,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:16:59,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:16:59,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:16:59,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:16:59,600 INFO L87 Difference]: Start difference. First operand 402 states and 630 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:16:59,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:16:59,668 INFO L93 Difference]: Finished difference Result 795 states and 1250 transitions. [2022-07-19 17:16:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:16:59,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2022-07-19 17:16:59,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:16:59,673 INFO L225 Difference]: With dead ends: 795 [2022-07-19 17:16:59,673 INFO L226 Difference]: Without dead ends: 404 [2022-07-19 17:16:59,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 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 17:16:59,676 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 144 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1873 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 17:16:59,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1873 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:16:59,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-07-19 17:16:59,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-07-19 17:16:59,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 319 states have (on average 1.5924764890282133) internal successors, (508), 322 states have internal predecessors, (508), 62 states have call successors, (62), 21 states have call predecessors, (62), 22 states have return successors, (63), 60 states have call predecessors, (63), 61 states have call successors, (63) [2022-07-19 17:16:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 633 transitions. [2022-07-19 17:16:59,695 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 633 transitions. Word has length 103 [2022-07-19 17:16:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:16:59,696 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 633 transitions. [2022-07-19 17:16:59,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:16:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 633 transitions. [2022-07-19 17:16:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-19 17:16:59,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:16:59,698 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:16:59,725 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 17:16:59,911 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 17:16:59,911 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:16:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:16:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1244565440, now seen corresponding path program 1 times [2022-07-19 17:16:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:16:59,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773500200] [2022-07-19 17:16:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:16:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:16:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:16:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:16:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:16:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:16:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:17:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:17:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 17:17:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:17:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:17:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:17:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:17:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:17:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:17:00,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:00,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773500200] [2022-07-19 17:17:00,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773500200] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:17:00,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361007469] [2022-07-19 17:17:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:00,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:17:00,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:17:00,064 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 17:17:00,074 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 17:17:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 17:17:00,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:17:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 17:17:00,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:17:00,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361007469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:00,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:17:00,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 17:17:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387760222] [2022-07-19 17:17:00,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:00,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:17:00,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:00,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:17:00,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:17:00,357 INFO L87 Difference]: Start difference. First operand 404 states and 633 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:17:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:00,419 INFO L93 Difference]: Finished difference Result 797 states and 1255 transitions. [2022-07-19 17:17:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:17:00,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2022-07-19 17:17:00,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:00,423 INFO L225 Difference]: With dead ends: 797 [2022-07-19 17:17:00,423 INFO L226 Difference]: Without dead ends: 406 [2022-07-19 17:17:00,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 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 17:17:00,426 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 143 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1862 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 17:17:00,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1862 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:17:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-07-19 17:17:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2022-07-19 17:17:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 320 states have (on average 1.590625) internal successors, (509), 324 states have internal predecessors, (509), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2022-07-19 17:17:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2022-07-19 17:17:00,457 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 104 [2022-07-19 17:17:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:00,457 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2022-07-19 17:17:00,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:17:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2022-07-19 17:17:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-19 17:17:00,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:00,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:00,484 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 17:17:00,675 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 17:17:00,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:00,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:00,676 INFO L85 PathProgramCache]: Analyzing trace with hash 904075134, now seen corresponding path program 1 times [2022-07-19 17:17:00,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:00,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211645468] [2022-07-19 17:17:00,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:00,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 17:17:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:17:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:17:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:17:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:17:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:17:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:17:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:17:00,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:00,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211645468] [2022-07-19 17:17:00,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211645468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:00,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:00,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:17:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680185136] [2022-07-19 17:17:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:00,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:17:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:17:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:17:00,783 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:17:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:02,396 INFO L93 Difference]: Finished difference Result 881 states and 1407 transitions. [2022-07-19 17:17:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:17:02,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2022-07-19 17:17:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:02,400 INFO L225 Difference]: With dead ends: 881 [2022-07-19 17:17:02,400 INFO L226 Difference]: Without dead ends: 498 [2022-07-19 17:17:02,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 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 17:17:02,402 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 1256 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:02,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1507 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 17:17:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-07-19 17:17:02,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 406. [2022-07-19 17:17:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 320 states have (on average 1.590625) internal successors, (509), 324 states have internal predecessors, (509), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (67), 60 states have call predecessors, (67), 61 states have call successors, (67) [2022-07-19 17:17:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 638 transitions. [2022-07-19 17:17:02,430 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 638 transitions. Word has length 105 [2022-07-19 17:17:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:02,436 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 638 transitions. [2022-07-19 17:17:02,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:17:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 638 transitions. [2022-07-19 17:17:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-19 17:17:02,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:02,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:02,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:17:02,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -232989553, now seen corresponding path program 2 times [2022-07-19 17:17:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:02,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117173605] [2022-07-19 17:17:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 17:17:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 17:17:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:17:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:17:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:17:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:17:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:17:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 17:17:02,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:02,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117173605] [2022-07-19 17:17:02,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117173605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:02,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:02,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:17:02,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894331596] [2022-07-19 17:17:02,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:02,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:17:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:17:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:17:02,553 INFO L87 Difference]: Start difference. First operand 406 states and 638 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:17:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:04,034 INFO L93 Difference]: Finished difference Result 883 states and 1410 transitions. [2022-07-19 17:17:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:17:04,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2022-07-19 17:17:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:04,038 INFO L225 Difference]: With dead ends: 883 [2022-07-19 17:17:04,038 INFO L226 Difference]: Without dead ends: 500 [2022-07-19 17:17:04,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 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 17:17:04,040 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 1249 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:04,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1507 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:17:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-19 17:17:04,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 408. [2022-07-19 17:17:04,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 321 states have (on average 1.588785046728972) internal successors, (510), 326 states have internal predecessors, (510), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (69), 60 states have call predecessors, (69), 61 states have call successors, (69) [2022-07-19 17:17:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 641 transitions. [2022-07-19 17:17:04,064 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 641 transitions. Word has length 106 [2022-07-19 17:17:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:04,065 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 641 transitions. [2022-07-19 17:17:04,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 17:17:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 641 transitions. [2022-07-19 17:17:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-19 17:17:04,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:04,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:04,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:17:04,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:04,068 INFO L85 PathProgramCache]: Analyzing trace with hash 754334179, now seen corresponding path program 1 times [2022-07-19 17:17:04,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:04,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932038302] [2022-07-19 17:17:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:04,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:17:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:17:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:17:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:17:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:17:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:17:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:17:04,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:04,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932038302] [2022-07-19 17:17:04,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932038302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:04,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:04,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:17:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921918711] [2022-07-19 17:17:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:04,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:17:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:17:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:17:04,199 INFO L87 Difference]: Start difference. First operand 408 states and 641 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-19 17:17:06,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:06,230 INFO L93 Difference]: Finished difference Result 881 states and 1405 transitions. [2022-07-19 17:17:06,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:17:06,230 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 107 [2022-07-19 17:17:06,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:06,233 INFO L225 Difference]: With dead ends: 881 [2022-07-19 17:17:06,234 INFO L226 Difference]: Without dead ends: 500 [2022-07-19 17:17:06,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-19 17:17:06,236 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 1382 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3247 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:06,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 1852 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3247 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 17:17:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-19 17:17:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 408. [2022-07-19 17:17:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 321 states have (on average 1.588785046728972) internal successors, (510), 326 states have internal predecessors, (510), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2022-07-19 17:17:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 640 transitions. [2022-07-19 17:17:06,259 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 640 transitions. Word has length 107 [2022-07-19 17:17:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:06,260 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 640 transitions. [2022-07-19 17:17:06,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-19 17:17:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 640 transitions. [2022-07-19 17:17:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-19 17:17:06,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:06,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:06,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:17:06,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:06,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1320832791, now seen corresponding path program 2 times [2022-07-19 17:17:06,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:06,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802766255] [2022-07-19 17:17:06,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:06,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:17:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:17:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:17:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:17:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:17:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:17:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:17:06,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:06,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802766255] [2022-07-19 17:17:06,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802766255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:06,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:06,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:17:06,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391745276] [2022-07-19 17:17:06,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:06,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:17:06,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:06,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:17:06,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:17:06,406 INFO L87 Difference]: Start difference. First operand 408 states and 640 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-19 17:17:08,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:08,417 INFO L93 Difference]: Finished difference Result 883 states and 1411 transitions. [2022-07-19 17:17:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:17:08,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 108 [2022-07-19 17:17:08,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:08,421 INFO L225 Difference]: With dead ends: 883 [2022-07-19 17:17:08,421 INFO L226 Difference]: Without dead ends: 502 [2022-07-19 17:17:08,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-19 17:17:08,426 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 1374 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:08,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1851 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 3261 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 17:17:08,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-07-19 17:17:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 410. [2022-07-19 17:17:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 322 states have (on average 1.5869565217391304) internal successors, (511), 328 states have internal predecessors, (511), 62 states have call successors, (62), 21 states have call predecessors, (62), 25 states have return successors, (73), 60 states have call predecessors, (73), 61 states have call successors, (73) [2022-07-19 17:17:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 646 transitions. [2022-07-19 17:17:08,459 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 646 transitions. Word has length 108 [2022-07-19 17:17:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:08,460 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 646 transitions. [2022-07-19 17:17:08,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-19 17:17:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 646 transitions. [2022-07-19 17:17:08,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-19 17:17:08,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:08,463 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:08,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:17:08,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:08,464 INFO L85 PathProgramCache]: Analyzing trace with hash -365545368, now seen corresponding path program 1 times [2022-07-19 17:17:08,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:08,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516110399] [2022-07-19 17:17:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:08,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:17:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:17:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:17:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:17:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:17:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:17:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:08,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:08,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516110399] [2022-07-19 17:17:08,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516110399] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:17:08,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599576257] [2022-07-19 17:17:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:17:08,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:17:08,586 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 17:17:08,603 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 17:17:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:08,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:17:08,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:17:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:08,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:17:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:08,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599576257] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:17:08,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:17:08,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-19 17:17:08,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788683533] [2022-07-19 17:17:08,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:17:08,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 17:17:08,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 17:17:08,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:17:08,952 INFO L87 Difference]: Start difference. First operand 410 states and 646 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-19 17:17:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:10,806 INFO L93 Difference]: Finished difference Result 1070 states and 1780 transitions. [2022-07-19 17:17:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 17:17:10,807 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2022-07-19 17:17:10,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:10,813 INFO L225 Difference]: With dead ends: 1070 [2022-07-19 17:17:10,813 INFO L226 Difference]: Without dead ends: 919 [2022-07-19 17:17:10,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:17:10,815 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 1617 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:10,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 2112 Invalid, 2838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 17:17:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-19 17:17:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 803. [2022-07-19 17:17:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 636 states have (on average 1.6415094339622642) internal successors, (1044), 642 states have internal predecessors, (1044), 141 states have call successors, (141), 21 states have call predecessors, (141), 25 states have return successors, (162), 139 states have call predecessors, (162), 140 states have call successors, (162) [2022-07-19 17:17:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1347 transitions. [2022-07-19 17:17:10,867 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1347 transitions. Word has length 109 [2022-07-19 17:17:10,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:10,867 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1347 transitions. [2022-07-19 17:17:10,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-19 17:17:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1347 transitions. [2022-07-19 17:17:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-19 17:17:10,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:10,872 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:10,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 17:17:11,086 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 17:17:11,087 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:11,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:11,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1387538683, now seen corresponding path program 1 times [2022-07-19 17:17:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:11,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944265563] [2022-07-19 17:17:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:11,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:17:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:17:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:17:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:17:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:17:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:17:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:11,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:11,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944265563] [2022-07-19 17:17:11,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944265563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:11,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:11,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:11,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127822840] [2022-07-19 17:17:11,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:11,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:11,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:11,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:11,180 INFO L87 Difference]: Start difference. First operand 803 states and 1347 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:12,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:12,404 INFO L93 Difference]: Finished difference Result 2028 states and 3485 transitions. [2022-07-19 17:17:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:12,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2022-07-19 17:17:12,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:12,415 INFO L225 Difference]: With dead ends: 2028 [2022-07-19 17:17:12,415 INFO L226 Difference]: Without dead ends: 1293 [2022-07-19 17:17:12,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:12,418 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 1246 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:12,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1362 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:17:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2022-07-19 17:17:12,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1193. [2022-07-19 17:17:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 947 states have (on average 1.6515311510031678) internal successors, (1564), 953 states have internal predecessors, (1564), 220 states have call successors, (220), 21 states have call predecessors, (220), 25 states have return successors, (251), 218 states have call predecessors, (251), 219 states have call successors, (251) [2022-07-19 17:17:12,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 2035 transitions. [2022-07-19 17:17:12,490 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 2035 transitions. Word has length 115 [2022-07-19 17:17:12,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:12,490 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 2035 transitions. [2022-07-19 17:17:12,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:12,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 2035 transitions. [2022-07-19 17:17:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 17:17:12,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:12,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:12,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:17:12,498 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:12,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:12,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1259187153, now seen corresponding path program 1 times [2022-07-19 17:17:12,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:12,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813773063] [2022-07-19 17:17:12,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:12,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:17:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:17:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:17:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:17:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:17:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:17:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:12,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:12,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813773063] [2022-07-19 17:17:12,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813773063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:12,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:12,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:12,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611082661] [2022-07-19 17:17:12,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:12,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:12,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:12,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:12,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:12,601 INFO L87 Difference]: Start difference. First operand 1193 states and 2035 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:13,787 INFO L93 Difference]: Finished difference Result 2977 states and 5159 transitions. [2022-07-19 17:17:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:13,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-07-19 17:17:13,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:13,799 INFO L225 Difference]: With dead ends: 2977 [2022-07-19 17:17:13,800 INFO L226 Difference]: Without dead ends: 1905 [2022-07-19 17:17:13,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:13,806 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 1248 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:13,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1358 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:17:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2022-07-19 17:17:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1805. [2022-07-19 17:17:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1440 states have (on average 1.6576388888888889) internal successors, (2387), 1446 states have internal predecessors, (2387), 339 states have call successors, (339), 21 states have call predecessors, (339), 25 states have return successors, (370), 337 states have call predecessors, (370), 338 states have call successors, (370) [2022-07-19 17:17:13,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 3096 transitions. [2022-07-19 17:17:13,931 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 3096 transitions. Word has length 116 [2022-07-19 17:17:13,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:13,931 INFO L495 AbstractCegarLoop]: Abstraction has 1805 states and 3096 transitions. [2022-07-19 17:17:13,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:13,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 3096 transitions. [2022-07-19 17:17:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-19 17:17:13,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:13,941 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:13,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:17:13,942 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:13,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:13,942 INFO L85 PathProgramCache]: Analyzing trace with hash 245755623, now seen corresponding path program 1 times [2022-07-19 17:17:13,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:13,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425596969] [2022-07-19 17:17:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:13,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:13,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:13,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:17:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:17:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:17:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:17:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:17:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:17:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:14,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:14,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425596969] [2022-07-19 17:17:14,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425596969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:14,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:14,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:14,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818637593] [2022-07-19 17:17:14,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:14,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:14,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:14,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:14,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:14,023 INFO L87 Difference]: Start difference. First operand 1805 states and 3096 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:15,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:15,247 INFO L93 Difference]: Finished difference Result 4402 states and 7693 transitions. [2022-07-19 17:17:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:15,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2022-07-19 17:17:15,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:15,264 INFO L225 Difference]: With dead ends: 4402 [2022-07-19 17:17:15,265 INFO L226 Difference]: Without dead ends: 2843 [2022-07-19 17:17:15,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:15,271 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1243 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:15,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 1332 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:17:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2022-07-19 17:17:15,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2743. [2022-07-19 17:17:15,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2216 states have (on average 1.6629061371841156) internal successors, (3685), 2222 states have internal predecessors, (3685), 501 states have call successors, (501), 21 states have call predecessors, (501), 25 states have return successors, (548), 499 states have call predecessors, (548), 500 states have call successors, (548) [2022-07-19 17:17:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 4734 transitions. [2022-07-19 17:17:15,430 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 4734 transitions. Word has length 117 [2022-07-19 17:17:15,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:15,430 INFO L495 AbstractCegarLoop]: Abstraction has 2743 states and 4734 transitions. [2022-07-19 17:17:15,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:15,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 4734 transitions. [2022-07-19 17:17:15,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-19 17:17:15,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:15,441 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:15,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:17:15,442 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1189274254, now seen corresponding path program 1 times [2022-07-19 17:17:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:15,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141373137] [2022-07-19 17:17:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:17:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:17:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:17:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:17:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:17:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:17:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:15,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141373137] [2022-07-19 17:17:15,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141373137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:15,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:15,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:15,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421538439] [2022-07-19 17:17:15,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:15,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:15,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:15,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:15,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:15,537 INFO L87 Difference]: Start difference. First operand 2743 states and 4734 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:16,741 INFO L93 Difference]: Finished difference Result 6651 states and 11702 transitions. [2022-07-19 17:17:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:16,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2022-07-19 17:17:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:16,764 INFO L225 Difference]: With dead ends: 6651 [2022-07-19 17:17:16,764 INFO L226 Difference]: Without dead ends: 4358 [2022-07-19 17:17:16,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:16,772 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 1241 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:16,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 1328 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 17:17:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2022-07-19 17:17:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4258. [2022-07-19 17:17:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4258 states, 3486 states have (on average 1.6666666666666667) internal successors, (5810), 3492 states have internal predecessors, (5810), 746 states have call successors, (746), 21 states have call predecessors, (746), 25 states have return successors, (819), 744 states have call predecessors, (819), 745 states have call successors, (819) [2022-07-19 17:17:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 7375 transitions. [2022-07-19 17:17:17,041 INFO L78 Accepts]: Start accepts. Automaton has 4258 states and 7375 transitions. Word has length 118 [2022-07-19 17:17:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:17,043 INFO L495 AbstractCegarLoop]: Abstraction has 4258 states and 7375 transitions. [2022-07-19 17:17:17,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4258 states and 7375 transitions. [2022-07-19 17:17:17,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-19 17:17:17,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:17,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:17,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:17:17,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:17,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:17,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2146579299, now seen corresponding path program 1 times [2022-07-19 17:17:17,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:17,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651279557] [2022-07-19 17:17:17,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:17,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:17:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:17:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:17:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:17:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:17:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:17:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:17,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:17,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651279557] [2022-07-19 17:17:17,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651279557] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:17,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:17,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:17,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857707328] [2022-07-19 17:17:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:17,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:17,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:17,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:17,147 INFO L87 Difference]: Start difference. First operand 4258 states and 7375 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:18,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:18,389 INFO L93 Difference]: Finished difference Result 10667 states and 18814 transitions. [2022-07-19 17:17:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:18,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-07-19 17:17:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:18,424 INFO L225 Difference]: With dead ends: 10667 [2022-07-19 17:17:18,424 INFO L226 Difference]: Without dead ends: 7091 [2022-07-19 17:17:18,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:18,436 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 1239 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:18,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1386 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 17:17:18,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-07-19 17:17:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 6991. [2022-07-19 17:17:18,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 5726 states have (on average 1.6617184771219) internal successors, (9515), 5732 states have internal predecessors, (9515), 1239 states have call successors, (1239), 21 states have call predecessors, (1239), 25 states have return successors, (1356), 1237 states have call predecessors, (1356), 1238 states have call successors, (1356) [2022-07-19 17:17:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 12110 transitions. [2022-07-19 17:17:18,820 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 12110 transitions. Word has length 119 [2022-07-19 17:17:18,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:18,821 INFO L495 AbstractCegarLoop]: Abstraction has 6991 states and 12110 transitions. [2022-07-19 17:17:18,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:18,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 12110 transitions. [2022-07-19 17:17:18,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-19 17:17:18,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:18,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:18,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:17:18,838 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:18,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:18,838 INFO L85 PathProgramCache]: Analyzing trace with hash -412052234, now seen corresponding path program 1 times [2022-07-19 17:17:18,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:18,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759101238] [2022-07-19 17:17:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:18,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:17:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:17:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:17:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:17:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:17:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:17:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:18,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:18,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:18,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759101238] [2022-07-19 17:17:18,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759101238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:18,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:18,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:18,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690709695] [2022-07-19 17:17:18,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:18,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:18,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:18,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:18,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:18,920 INFO L87 Difference]: Start difference. First operand 6991 states and 12110 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:20,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:20,336 INFO L93 Difference]: Finished difference Result 17807 states and 31386 transitions. [2022-07-19 17:17:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:20,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2022-07-19 17:17:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:20,384 INFO L225 Difference]: With dead ends: 17807 [2022-07-19 17:17:20,384 INFO L226 Difference]: Without dead ends: 11875 [2022-07-19 17:17:20,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:20,411 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 1233 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:20,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 1366 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:17:20,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11875 states. [2022-07-19 17:17:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11875 to 11775. [2022-07-19 17:17:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11775 states, 9688 states have (on average 1.6611271676300579) internal successors, (16093), 9694 states have internal predecessors, (16093), 2061 states have call successors, (2061), 21 states have call predecessors, (2061), 25 states have return successors, (2256), 2059 states have call predecessors, (2256), 2060 states have call successors, (2256) [2022-07-19 17:17:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11775 states to 11775 states and 20410 transitions. [2022-07-19 17:17:21,083 INFO L78 Accepts]: Start accepts. Automaton has 11775 states and 20410 transitions. Word has length 120 [2022-07-19 17:17:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:21,084 INFO L495 AbstractCegarLoop]: Abstraction has 11775 states and 20410 transitions. [2022-07-19 17:17:21,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11775 states and 20410 transitions. [2022-07-19 17:17:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-19 17:17:21,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:21,105 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:21,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:17:21,105 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:21,106 INFO L85 PathProgramCache]: Analyzing trace with hash -628071131, now seen corresponding path program 1 times [2022-07-19 17:17:21,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:21,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085098417] [2022-07-19 17:17:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:21,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:17:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:17:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:17:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:17:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:17:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:17:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:21,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:21,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085098417] [2022-07-19 17:17:21,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085098417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:21,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:21,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:21,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514513856] [2022-07-19 17:17:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:21,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:21,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:21,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:21,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:21,193 INFO L87 Difference]: Start difference. First operand 11775 states and 20410 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:22,842 INFO L93 Difference]: Finished difference Result 28240 states and 49511 transitions. [2022-07-19 17:17:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-07-19 17:17:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:22,919 INFO L225 Difference]: With dead ends: 28240 [2022-07-19 17:17:22,919 INFO L226 Difference]: Without dead ends: 18468 [2022-07-19 17:17:22,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:22,957 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 1231 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:22,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1334 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:17:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18468 states. [2022-07-19 17:17:23,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18468 to 18368. [2022-07-19 17:17:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18368 states, 15078 states have (on average 1.6354291020029181) internal successors, (24659), 15084 states have internal predecessors, (24659), 3264 states have call successors, (3264), 21 states have call predecessors, (3264), 25 states have return successors, (3603), 3262 states have call predecessors, (3603), 3263 states have call successors, (3603) [2022-07-19 17:17:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18368 states to 18368 states and 31526 transitions. [2022-07-19 17:17:23,930 INFO L78 Accepts]: Start accepts. Automaton has 18368 states and 31526 transitions. Word has length 121 [2022-07-19 17:17:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:23,931 INFO L495 AbstractCegarLoop]: Abstraction has 18368 states and 31526 transitions. [2022-07-19 17:17:23,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:23,931 INFO L276 IsEmpty]: Start isEmpty. Operand 18368 states and 31526 transitions. [2022-07-19 17:17:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-19 17:17:23,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:23,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:23,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 17:17:23,952 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1967538743, now seen corresponding path program 1 times [2022-07-19 17:17:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621234638] [2022-07-19 17:17:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:23,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:23,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:17:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:17:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:17:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:17:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:17:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:17:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:24,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:24,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621234638] [2022-07-19 17:17:24,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621234638] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:24,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:24,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:24,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817711156] [2022-07-19 17:17:24,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:24,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:24,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:24,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:24,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:24,034 INFO L87 Difference]: Start difference. First operand 18368 states and 31526 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:26,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:26,216 INFO L93 Difference]: Finished difference Result 48662 states and 85015 transitions. [2022-07-19 17:17:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:26,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-07-19 17:17:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:26,340 INFO L225 Difference]: With dead ends: 48662 [2022-07-19 17:17:26,340 INFO L226 Difference]: Without dead ends: 32904 [2022-07-19 17:17:26,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:26,383 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 1235 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:26,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 1331 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 17:17:26,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32904 states. [2022-07-19 17:17:27,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32904 to 32804. [2022-07-19 17:17:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32804 states, 27064 states have (on average 1.6319095477386936) internal successors, (44166), 27070 states have internal predecessors, (44166), 5714 states have call successors, (5714), 21 states have call predecessors, (5714), 25 states have return successors, (6327), 5712 states have call predecessors, (6327), 5713 states have call successors, (6327) [2022-07-19 17:17:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32804 states to 32804 states and 56207 transitions. [2022-07-19 17:17:28,090 INFO L78 Accepts]: Start accepts. Automaton has 32804 states and 56207 transitions. Word has length 122 [2022-07-19 17:17:28,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:28,090 INFO L495 AbstractCegarLoop]: Abstraction has 32804 states and 56207 transitions. [2022-07-19 17:17:28,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:28,091 INFO L276 IsEmpty]: Start isEmpty. Operand 32804 states and 56207 transitions. [2022-07-19 17:17:28,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-19 17:17:28,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:28,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:28,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:17:28,114 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:28,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:28,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1698809343, now seen corresponding path program 1 times [2022-07-19 17:17:28,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:28,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907859337] [2022-07-19 17:17:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:28,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:17:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:17:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:17:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:17:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:17:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:17:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:28,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:28,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907859337] [2022-07-19 17:17:28,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907859337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:28,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:28,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:28,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749206906] [2022-07-19 17:17:28,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:28,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:28,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:28,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:28,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:28,204 INFO L87 Difference]: Start difference. First operand 32804 states and 56207 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:31,169 INFO L93 Difference]: Finished difference Result 89559 states and 155649 transitions. [2022-07-19 17:17:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2022-07-19 17:17:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:31,624 INFO L225 Difference]: With dead ends: 89559 [2022-07-19 17:17:31,624 INFO L226 Difference]: Without dead ends: 60241 [2022-07-19 17:17:31,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:31,700 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1229 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:31,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 1336 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 17:17:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60241 states. [2022-07-19 17:17:34,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60241 to 60141. [2022-07-19 17:17:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60141 states, 49888 states have (on average 1.6274254329698525) internal successors, (81189), 49894 states have internal predecessors, (81189), 10227 states have call successors, (10227), 21 states have call predecessors, (10227), 25 states have return successors, (11372), 10225 states have call predecessors, (11372), 10226 states have call successors, (11372) [2022-07-19 17:17:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60141 states to 60141 states and 102788 transitions. [2022-07-19 17:17:34,986 INFO L78 Accepts]: Start accepts. Automaton has 60141 states and 102788 transitions. Word has length 123 [2022-07-19 17:17:34,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:34,987 INFO L495 AbstractCegarLoop]: Abstraction has 60141 states and 102788 transitions. [2022-07-19 17:17:34,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 60141 states and 102788 transitions. [2022-07-19 17:17:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-19 17:17:35,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:35,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:35,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 17:17:35,012 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:35,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash 554856855, now seen corresponding path program 1 times [2022-07-19 17:17:35,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:35,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452135576] [2022-07-19 17:17:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:35,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:17:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:17:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:17:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:17:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:17:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:17:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:35,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:35,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452135576] [2022-07-19 17:17:35,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452135576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:35,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:35,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:17:35,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363807519] [2022-07-19 17:17:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:35,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:17:35,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:17:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:17:35,115 INFO L87 Difference]: Start difference. First operand 60141 states and 102788 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:39,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:39,398 INFO L93 Difference]: Finished difference Result 112650 states and 196227 transitions. [2022-07-19 17:17:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:17:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2022-07-19 17:17:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:39,962 INFO L225 Difference]: With dead ends: 112650 [2022-07-19 17:17:39,963 INFO L226 Difference]: Without dead ends: 112499 [2022-07-19 17:17:40,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:17:40,018 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1231 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:40,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 1333 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 17:17:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112499 states. [2022-07-19 17:17:44,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112499 to 112399. [2022-07-19 17:17:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112399 states, 93778 states have (on average 1.6218729339503934) internal successors, (152096), 93784 states have internal predecessors, (152096), 18595 states have call successors, (18595), 21 states have call predecessors, (18595), 25 states have return successors, (20786), 18593 states have call predecessors, (20786), 18594 states have call successors, (20786) [2022-07-19 17:17:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112399 states to 112399 states and 191477 transitions. [2022-07-19 17:17:45,057 INFO L78 Accepts]: Start accepts. Automaton has 112399 states and 191477 transitions. Word has length 124 [2022-07-19 17:17:45,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:45,057 INFO L495 AbstractCegarLoop]: Abstraction has 112399 states and 191477 transitions. [2022-07-19 17:17:45,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:17:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 112399 states and 191477 transitions. [2022-07-19 17:17:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-19 17:17:45,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:17:45,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:17:45,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 17:17:45,083 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:17:45,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:17:45,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1368831294, now seen corresponding path program 1 times [2022-07-19 17:17:45,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:17:45,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195262265] [2022-07-19 17:17:45,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:17:45,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:17:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:17:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:17:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:17:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:17:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:17:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:17:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:17:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:17:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:17:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:17:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:17:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:17:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:17:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:17:45,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:17:45,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195262265] [2022-07-19 17:17:45,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195262265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:17:45,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:17:45,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 17:17:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743667994] [2022-07-19 17:17:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:17:45,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 17:17:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:17:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 17:17:45,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:17:45,201 INFO L87 Difference]: Start difference. First operand 112399 states and 191477 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-19 17:17:50,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:17:50,167 INFO L93 Difference]: Finished difference Result 112489 states and 194907 transitions. [2022-07-19 17:17:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:17:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 125 [2022-07-19 17:17:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:17:50,172 INFO L225 Difference]: With dead ends: 112489 [2022-07-19 17:17:50,172 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:17:50,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-07-19 17:17:50,510 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 1438 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:17:50,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1690 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:17:50,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:17:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:17:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:17:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:17:50,524 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2022-07-19 17:17:50,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:17:50,524 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:17:50,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-19 17:17:50,524 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:17:50,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:17:50,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:17:50,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 17:17:50,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.