./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product25.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_spec0_product25.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 be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:05:07,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:05:07,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:05:07,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:05:07,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:05:07,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:05:07,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:05:07,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:05:07,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:05:07,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:05:07,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:05:07,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:05:07,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:05:07,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:05:07,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:05:07,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:05:07,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:05:07,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:05:07,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:05:07,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:05:07,539 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:05:07,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:05:07,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:05:07,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:05:07,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:05:07,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:05:07,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:05:07,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:05:07,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:05:07,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:05:07,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:05:07,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:05:07,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:05:07,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:05:07,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:05:07,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:05:07,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:05:07,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:05:07,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:05:07,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:05:07,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:05:07,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:05:07,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:05:07,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:05:07,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:05:07,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:05:07,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:05:07,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:05:07,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:05:07,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:05:07,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:05:07,579 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:05:07,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:05:07,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:05:07,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:05:07,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:05:07,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:05:07,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:05:07,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:05:07,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:05:07,581 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:05:07,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:05:07,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:05:07,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:05:07,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:05:07,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:05:07,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:05:07,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:05:07,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:05:07,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:05:07,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:05:07,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:05:07,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:05:07,584 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:05:07,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:05:07,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:05:07,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 [2022-07-19 17:05:07,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:05:07,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:05:07,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:05:07,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:05:07,808 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:05:07,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2022-07-19 17:05:07,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c8b7e28/304c215daa43497db57100c8dfe22f70/FLAG2884752ae [2022-07-19 17:05:08,307 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:05:08,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2022-07-19 17:05:08,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c8b7e28/304c215daa43497db57100c8dfe22f70/FLAG2884752ae [2022-07-19 17:05:08,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c8b7e28/304c215daa43497db57100c8dfe22f70 [2022-07-19 17:05:08,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:05:08,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:05:08,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:05:08,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:05:08,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:05:08,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:05:08" (1/1) ... [2022-07-19 17:05:08,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb1b9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:08, skipping insertion in model container [2022-07-19 17:05:08,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:05:08" (1/1) ... [2022-07-19 17:05:08,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:05:08,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:05:09,001 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_spec0_product25.cil.c[43418,43431] [2022-07-19 17:05:09,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:05:09,080 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:05:09,201 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_spec0_product25.cil.c[43418,43431] [2022-07-19 17:05:09,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:05:09,286 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:05:09,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09 WrapperNode [2022-07-19 17:05:09,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:05:09,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:05:09,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:05:09,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:05:09,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,362 INFO L137 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1072 [2022-07-19 17:05:09,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:05:09,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:05:09,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:05:09,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:05:09,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:05:09,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:05:09,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:05:09,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:05:09,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (1/1) ... [2022-07-19 17:05:09,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:05:09,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:09,444 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 17:05:09,460 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 17:05:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-19 17:05:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-19 17:05:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-19 17:05:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-19 17:05:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-07-19 17:05:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-07-19 17:05:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-19 17:05:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-19 17:05:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-19 17:05:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-19 17:05:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-19 17:05:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-19 17:05:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-19 17:05:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-19 17:05:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-19 17:05:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-19 17:05:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-19 17:05:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-19 17:05:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-19 17:05:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-19 17:05:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-19 17:05:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-19 17:05:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-19 17:05:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:05:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-19 17:05:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-19 17:05:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-19 17:05:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-19 17:05:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-19 17:05:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-19 17:05:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-19 17:05:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-19 17:05:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-19 17:05:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-19 17:05:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-19 17:05:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-19 17:05:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-19 17:05:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-19 17:05:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-19 17:05:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-19 17:05:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:05:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-19 17:05:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-19 17:05:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-19 17:05:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-19 17:05:09,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:05:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:05:09,646 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:05:09,647 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:05:10,129 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:05:10,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:05:10,136 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:05:10,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:05:10 BoogieIcfgContainer [2022-07-19 17:05:10,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:05:10,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:05:10,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:05:10,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:05:10,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:05:08" (1/3) ... [2022-07-19 17:05:10,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379c2639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:05:10, skipping insertion in model container [2022-07-19 17:05:10,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:05:09" (2/3) ... [2022-07-19 17:05:10,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379c2639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:05:10, skipping insertion in model container [2022-07-19 17:05:10,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:05:10" (3/3) ... [2022-07-19 17:05:10,143 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product25.cil.c [2022-07-19 17:05:10,151 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:05:10,152 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:05:10,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:05:10,214 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@7b23085a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1429f1e5 [2022-07-19 17:05:10,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:05:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 379 states, 302 states have (on average 1.5695364238410596) internal successors, (474), 305 states have internal predecessors, (474), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-07-19 17:05:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-19 17:05:10,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:10,232 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:10,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:10,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash 679588106, now seen corresponding path program 1 times [2022-07-19 17:05:10,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:10,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901470588] [2022-07-19 17:05:10,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:05:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:05:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:05:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 17:05:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:05:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:05:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:05:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:05:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:05:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:05:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:05:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 17:05:10,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:10,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901470588] [2022-07-19 17:05:10,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901470588] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:10,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719293630] [2022-07-19 17:05:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:10,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:10,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:10,636 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 17:05:10,637 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 17:05:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:10,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 17:05:11,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 17:05:11,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:05:11,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719293630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:11,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:05:11,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-19 17:05:11,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388738569] [2022-07-19 17:05:11,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:11,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:05:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:11,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:05:11,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:05:11,046 INFO L87 Difference]: Start difference. First operand has 379 states, 302 states have (on average 1.5695364238410596) internal successors, (474), 305 states have internal predecessors, (474), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:11,084 INFO L93 Difference]: Finished difference Result 565 states and 854 transitions. [2022-07-19 17:05:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:05:11,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2022-07-19 17:05:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:11,099 INFO L225 Difference]: With dead ends: 565 [2022-07-19 17:05:11,099 INFO L226 Difference]: Without dead ends: 372 [2022-07-19 17:05:11,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 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 17:05:11,106 INFO L413 NwaCegarLoop]: 578 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, 578 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 17:05:11,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:05:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-07-19 17:05:11,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2022-07-19 17:05:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 296 states have (on average 1.5641891891891893) internal successors, (463), 298 states have internal predecessors, (463), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-07-19 17:05:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 570 transitions. [2022-07-19 17:05:11,180 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 570 transitions. Word has length 113 [2022-07-19 17:05:11,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:11,181 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 570 transitions. [2022-07-19 17:05:11,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:11,181 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 570 transitions. [2022-07-19 17:05:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-19 17:05:11,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:11,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:11,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:05:11,395 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 17:05:11,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash 181605890, now seen corresponding path program 1 times [2022-07-19 17:05:11,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:11,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060241251] [2022-07-19 17:05:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:11,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:05:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:05:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:05:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 17:05:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 17:05:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:05:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:05:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:05:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:05:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:05:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:05:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 17:05:11,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:11,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060241251] [2022-07-19 17:05:11,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060241251] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:11,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981312818] [2022-07-19 17:05:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:11,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:11,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:11,515 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 17:05:11,516 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 17:05:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:11,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 17:05:11,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 17:05:11,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:05:11,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981312818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:11,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:05:11,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:05:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921669220] [2022-07-19 17:05:11,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:11,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:05:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:11,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:05:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:05:11,781 INFO L87 Difference]: Start difference. First operand 372 states and 570 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:11,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:11,819 INFO L93 Difference]: Finished difference Result 555 states and 832 transitions. [2022-07-19 17:05:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:05:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-07-19 17:05:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:11,823 INFO L225 Difference]: With dead ends: 555 [2022-07-19 17:05:11,826 INFO L226 Difference]: Without dead ends: 375 [2022-07-19 17:05:11,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:05:11,828 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1134 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 17:05:11,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1134 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:05:11,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-19 17:05:11,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 374. [2022-07-19 17:05:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 298 states have (on average 1.5604026845637584) internal successors, (465), 300 states have internal predecessors, (465), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-07-19 17:05:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 572 transitions. [2022-07-19 17:05:11,857 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 572 transitions. Word has length 114 [2022-07-19 17:05:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:11,859 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 572 transitions. [2022-07-19 17:05:11,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 572 transitions. [2022-07-19 17:05:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-19 17:05:11,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:11,862 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:11,893 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 17:05:12,080 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 17:05:12,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:12,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:12,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1469599467, now seen corresponding path program 1 times [2022-07-19 17:05:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:12,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670588002] [2022-07-19 17:05:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:12,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:05:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:05:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:05:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 17:05:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:05:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:05:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:05:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:05:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:05:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:05:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:05:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 17:05:12,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:12,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670588002] [2022-07-19 17:05:12,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670588002] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:12,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659202015] [2022-07-19 17:05:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:12,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:12,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:12,173 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 17:05:12,174 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 17:05:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:05:12,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 17:05:12,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:05:12,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659202015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:12,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:05:12,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:05:12,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931876446] [2022-07-19 17:05:12,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:12,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:05:12,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:12,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:05:12,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:05:12,429 INFO L87 Difference]: Start difference. First operand 374 states and 572 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:12,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:12,459 INFO L93 Difference]: Finished difference Result 796 states and 1236 transitions. [2022-07-19 17:05:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:05:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-07-19 17:05:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:12,463 INFO L225 Difference]: With dead ends: 796 [2022-07-19 17:05:12,463 INFO L226 Difference]: Without dead ends: 449 [2022-07-19 17:05:12,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:05:12,467 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 134 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1108 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 17:05:12,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1108 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:05:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-07-19 17:05:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 441. [2022-07-19 17:05:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 351 states have (on average 1.5783475783475784) internal successors, (554), 353 states have internal predecessors, (554), 68 states have call successors, (68), 21 states have call predecessors, (68), 21 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-07-19 17:05:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 689 transitions. [2022-07-19 17:05:12,494 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 689 transitions. Word has length 120 [2022-07-19 17:05:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:12,495 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 689 transitions. [2022-07-19 17:05:12,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 689 transitions. [2022-07-19 17:05:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-19 17:05:12,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:12,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:12,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-19 17:05:12,718 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 17:05:12,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:12,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:12,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1957369275, now seen corresponding path program 1 times [2022-07-19 17:05:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:12,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258354081] [2022-07-19 17:05:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:12,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:05:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:05:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:05:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 17:05:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:05:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:05:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:05:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:05:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:05:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:05:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:05:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 17:05:12,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:12,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258354081] [2022-07-19 17:05:12,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258354081] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:12,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113502774] [2022-07-19 17:05:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:12,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:12,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:12,837 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 17:05:12,869 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 17:05:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:05:13,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:05:13,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:05:13,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113502774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:13,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:05:13,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-19 17:05:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282949384] [2022-07-19 17:05:13,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:13,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:05:13,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:13,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:05:13,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:05:13,122 INFO L87 Difference]: Start difference. First operand 441 states and 689 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:13,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:13,186 INFO L93 Difference]: Finished difference Result 873 states and 1368 transitions. [2022-07-19 17:05:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:05:13,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-07-19 17:05:13,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:13,189 INFO L225 Difference]: With dead ends: 873 [2022-07-19 17:05:13,189 INFO L226 Difference]: Without dead ends: 443 [2022-07-19 17:05:13,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 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 17:05:13,191 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 152 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2069 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 17:05:13,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2069 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:05:13,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-19 17:05:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-07-19 17:05:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 352 states have (on average 1.5767045454545454) internal successors, (555), 355 states have internal predecessors, (555), 68 states have call successors, (68), 21 states have call predecessors, (68), 22 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2022-07-19 17:05:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 692 transitions. [2022-07-19 17:05:13,205 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 692 transitions. Word has length 121 [2022-07-19 17:05:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:13,206 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 692 transitions. [2022-07-19 17:05:13,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 692 transitions. [2022-07-19 17:05:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-19 17:05:13,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:13,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:13,241 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 17:05:13,441 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 17:05:13,442 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1812398653, now seen corresponding path program 1 times [2022-07-19 17:05:13,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:13,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735837567] [2022-07-19 17:05:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:05:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:05:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 17:05:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:05:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:05:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:05:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:05:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:05:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:05:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:05:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 17:05:13,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735837567] [2022-07-19 17:05:13,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735837567] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707150227] [2022-07-19 17:05:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:13,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:13,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:13,558 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 17:05:13,594 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 17:05:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:13,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 17:05:13,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:05:13,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:05:13,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707150227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:13,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:05:13,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 17:05:13,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461607174] [2022-07-19 17:05:13,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:13,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:05:13,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:13,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:05:13,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:05:13,846 INFO L87 Difference]: Start difference. First operand 443 states and 692 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:13,896 INFO L93 Difference]: Finished difference Result 875 states and 1373 transitions. [2022-07-19 17:05:13,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:05:13,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-07-19 17:05:13,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:13,899 INFO L225 Difference]: With dead ends: 875 [2022-07-19 17:05:13,899 INFO L226 Difference]: Without dead ends: 445 [2022-07-19 17:05:13,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 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 17:05:13,901 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 151 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2058 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 17:05:13,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2058 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:05:13,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-07-19 17:05:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-07-19 17:05:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 353 states have (on average 1.575070821529745) internal successors, (556), 357 states have internal predecessors, (556), 68 states have call successors, (68), 21 states have call predecessors, (68), 23 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-07-19 17:05:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 698 transitions. [2022-07-19 17:05:13,925 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 698 transitions. Word has length 122 [2022-07-19 17:05:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:13,926 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 698 transitions. [2022-07-19 17:05:13,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 698 transitions. [2022-07-19 17:05:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-19 17:05:13,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:13,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:13,963 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 17:05:14,164 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 17:05:14,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:14,166 INFO L85 PathProgramCache]: Analyzing trace with hash 821272992, now seen corresponding path program 1 times [2022-07-19 17:05:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:14,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538040805] [2022-07-19 17:05:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:14,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 17:05:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:05:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:05:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:05:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:05:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:05:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:05:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:05:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:05:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 17:05:14,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538040805] [2022-07-19 17:05:14,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538040805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:14,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:14,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:05:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992837454] [2022-07-19 17:05:14,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:14,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:05:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:05:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:05:14,275 INFO L87 Difference]: Start difference. First operand 445 states and 698 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:15,894 INFO L93 Difference]: Finished difference Result 1054 states and 1668 transitions. [2022-07-19 17:05:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:05:15,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-07-19 17:05:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:15,897 INFO L225 Difference]: With dead ends: 1054 [2022-07-19 17:05:15,897 INFO L226 Difference]: Without dead ends: 632 [2022-07-19 17:05:15,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:05:15,899 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 1396 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:15,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1701 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 17:05:15,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-07-19 17:05:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 445. [2022-07-19 17:05:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 353 states have (on average 1.575070821529745) internal successors, (556), 357 states have internal predecessors, (556), 68 states have call successors, (68), 21 states have call predecessors, (68), 23 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2022-07-19 17:05:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 697 transitions. [2022-07-19 17:05:15,922 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 697 transitions. Word has length 123 [2022-07-19 17:05:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:15,922 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 697 transitions. [2022-07-19 17:05:15,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 697 transitions. [2022-07-19 17:05:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-19 17:05:15,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:15,924 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:15,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:05:15,924 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:15,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash 608808774, now seen corresponding path program 2 times [2022-07-19 17:05:15,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:15,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611188939] [2022-07-19 17:05:15,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:15,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:15,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 17:05:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 17:05:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:05:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:05:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:05:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:05:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:05:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:05:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:05:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:16,020 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 17:05:16,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:16,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611188939] [2022-07-19 17:05:16,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611188939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:16,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:16,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:05:16,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056033877] [2022-07-19 17:05:16,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:16,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:05:16,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:16,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:05:16,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:05:16,022 INFO L87 Difference]: Start difference. First operand 445 states and 697 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:17,615 INFO L93 Difference]: Finished difference Result 1056 states and 1671 transitions. [2022-07-19 17:05:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:05:17,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2022-07-19 17:05:17,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:17,619 INFO L225 Difference]: With dead ends: 1056 [2022-07-19 17:05:17,619 INFO L226 Difference]: Without dead ends: 634 [2022-07-19 17:05:17,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:05:17,621 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1391 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 2971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:17,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 1702 Invalid, 2971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 17:05:17,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-07-19 17:05:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 447. [2022-07-19 17:05:17,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 354 states have (on average 1.573446327683616) internal successors, (557), 359 states have internal predecessors, (557), 68 states have call successors, (68), 21 states have call predecessors, (68), 24 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2022-07-19 17:05:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 700 transitions. [2022-07-19 17:05:17,640 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 700 transitions. Word has length 124 [2022-07-19 17:05:17,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:17,641 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 700 transitions. [2022-07-19 17:05:17,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:05:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 700 transitions. [2022-07-19 17:05:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-19 17:05:17,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:17,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:17,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:05:17,643 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:17,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash 685518693, now seen corresponding path program 1 times [2022-07-19 17:05:17,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:17,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450769327] [2022-07-19 17:05:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:17,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:05:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:05:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:05:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:05:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:05:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:05:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:05:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:05:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 17:05:17,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450769327] [2022-07-19 17:05:17,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450769327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:17,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:17,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:05:17,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914433326] [2022-07-19 17:05:17,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:17,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:05:17,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:17,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:05:17,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:05:17,742 INFO L87 Difference]: Start difference. First operand 447 states and 700 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:05:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:19,875 INFO L93 Difference]: Finished difference Result 1054 states and 1666 transitions. [2022-07-19 17:05:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:05:19,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2022-07-19 17:05:19,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:19,878 INFO L225 Difference]: With dead ends: 1054 [2022-07-19 17:05:19,878 INFO L226 Difference]: Without dead ends: 634 [2022-07-19 17:05:19,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 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 17:05:19,880 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1530 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 4971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:19,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 2062 Invalid, 4971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 17:05:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-07-19 17:05:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 447. [2022-07-19 17:05:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 354 states have (on average 1.573446327683616) internal successors, (557), 359 states have internal predecessors, (557), 68 states have call successors, (68), 21 states have call predecessors, (68), 24 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2022-07-19 17:05:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 699 transitions. [2022-07-19 17:05:19,898 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 699 transitions. Word has length 125 [2022-07-19 17:05:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:19,898 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 699 transitions. [2022-07-19 17:05:19,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:05:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 699 transitions. [2022-07-19 17:05:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-19 17:05:19,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:19,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:19,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:05:19,901 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1451616446, now seen corresponding path program 2 times [2022-07-19 17:05:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:19,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645997744] [2022-07-19 17:05:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:05:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:05:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:05:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:05:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:05:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:05:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:05:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:05:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 17:05:20,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:20,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645997744] [2022-07-19 17:05:20,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645997744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:20,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:20,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:05:20,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038529972] [2022-07-19 17:05:20,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:20,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:05:20,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:20,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:05:20,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:05:20,061 INFO L87 Difference]: Start difference. First operand 447 states and 699 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:05:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:22,299 INFO L93 Difference]: Finished difference Result 1056 states and 1672 transitions. [2022-07-19 17:05:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:05:22,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 126 [2022-07-19 17:05:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:22,303 INFO L225 Difference]: With dead ends: 1056 [2022-07-19 17:05:22,319 INFO L226 Difference]: Without dead ends: 636 [2022-07-19 17:05:22,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 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 17:05:22,321 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 1530 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4408 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 4979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 4408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:22,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 2058 Invalid, 4979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 4408 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 17:05:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-07-19 17:05:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 449. [2022-07-19 17:05:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 355 states have (on average 1.5718309859154929) internal successors, (558), 361 states have internal predecessors, (558), 68 states have call successors, (68), 21 states have call predecessors, (68), 25 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2022-07-19 17:05:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 705 transitions. [2022-07-19 17:05:22,343 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 705 transitions. Word has length 126 [2022-07-19 17:05:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:22,343 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 705 transitions. [2022-07-19 17:05:22,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 17:05:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 705 transitions. [2022-07-19 17:05:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-19 17:05:22,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:22,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:22,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:05:22,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:22,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:22,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2113639478, now seen corresponding path program 1 times [2022-07-19 17:05:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:22,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914861049] [2022-07-19 17:05:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:05:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:05:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:05:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:05:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:05:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:05:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:05:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 17:05:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:22,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:22,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914861049] [2022-07-19 17:05:22,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914861049] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:22,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487374344] [2022-07-19 17:05:22,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:22,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:22,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:22,460 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 17:05:22,462 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 17:05:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:22,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:05:22,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:22,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:05:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:22,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487374344] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:05:22,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:05:22,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-19 17:05:22,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049593924] [2022-07-19 17:05:22,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:05:22,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 17:05:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:22,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 17:05:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:05:22,749 INFO L87 Difference]: Start difference. First operand 449 states and 705 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 17:05:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:24,208 INFO L93 Difference]: Finished difference Result 1258 states and 2065 transitions. [2022-07-19 17:05:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 17:05:24,208 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2022-07-19 17:05:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:24,214 INFO L225 Difference]: With dead ends: 1258 [2022-07-19 17:05:24,214 INFO L226 Difference]: Without dead ends: 1078 [2022-07-19 17:05:24,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 279 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 17:05:24,215 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1832 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:24,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 2319 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:05:24,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-19 17:05:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 867. [2022-07-19 17:05:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 694 states have (on average 1.6296829971181557) internal successors, (1131), 700 states have internal predecessors, (1131), 147 states have call successors, (147), 21 states have call predecessors, (147), 25 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2022-07-19 17:05:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1446 transitions. [2022-07-19 17:05:24,261 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1446 transitions. Word has length 127 [2022-07-19 17:05:24,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:24,261 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1446 transitions. [2022-07-19 17:05:24,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 17:05:24,261 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1446 transitions. [2022-07-19 17:05:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-19 17:05:24,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:24,265 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:24,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-19 17:05:24,479 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 17:05:24,479 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:24,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash 491822343, now seen corresponding path program 1 times [2022-07-19 17:05:24,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:24,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576195006] [2022-07-19 17:05:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:24,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:05:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:05:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:05:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:05:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:05:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:05:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 17:05:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:05:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:24,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:24,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576195006] [2022-07-19 17:05:24,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576195006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:24,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:24,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:24,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228239928] [2022-07-19 17:05:24,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:24,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:24,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:24,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:24,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:24,543 INFO L87 Difference]: Start difference. First operand 867 states and 1446 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:25,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:25,741 INFO L93 Difference]: Finished difference Result 2276 states and 3866 transitions. [2022-07-19 17:05:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:25,741 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-07-19 17:05:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:25,747 INFO L225 Difference]: With dead ends: 2276 [2022-07-19 17:05:25,747 INFO L226 Difference]: Without dead ends: 1477 [2022-07-19 17:05:25,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:25,750 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 1389 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:25,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 1552 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:05:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-07-19 17:05:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1282. [2022-07-19 17:05:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1030 states have (on average 1.641747572815534) internal successors, (1691), 1036 states have internal predecessors, (1691), 226 states have call successors, (226), 21 states have call predecessors, (226), 25 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2022-07-19 17:05:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 2174 transitions. [2022-07-19 17:05:25,795 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 2174 transitions. Word has length 133 [2022-07-19 17:05:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:25,796 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 2174 transitions. [2022-07-19 17:05:25,796 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 2174 transitions. [2022-07-19 17:05:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 17:05:25,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:25,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:25,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:05:25,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:25,802 INFO L85 PathProgramCache]: Analyzing trace with hash -146044612, now seen corresponding path program 1 times [2022-07-19 17:05:25,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:25,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694760005] [2022-07-19 17:05:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:25,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:05:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:05:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:05:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:05:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:05:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:05:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 17:05:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-19 17:05:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:25,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:25,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694760005] [2022-07-19 17:05:25,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694760005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:25,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:25,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:25,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816088440] [2022-07-19 17:05:25,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:25,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:25,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:25,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:25,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:25,868 INFO L87 Difference]: Start difference. First operand 1282 states and 2174 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:27,094 INFO L93 Difference]: Finished difference Result 3290 states and 5644 transitions. [2022-07-19 17:05:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:27,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-07-19 17:05:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:27,103 INFO L225 Difference]: With dead ends: 3290 [2022-07-19 17:05:27,103 INFO L226 Difference]: Without dead ends: 2129 [2022-07-19 17:05:27,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:27,106 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1390 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:27,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 1519 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:05:27,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2022-07-19 17:05:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 1934. [2022-07-19 17:05:27,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1934 states, 1563 states have (on average 1.6493921944977608) internal successors, (2578), 1569 states have internal predecessors, (2578), 345 states have call successors, (345), 21 states have call predecessors, (345), 25 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2022-07-19 17:05:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 3299 transitions. [2022-07-19 17:05:27,175 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 3299 transitions. Word has length 134 [2022-07-19 17:05:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:27,175 INFO L495 AbstractCegarLoop]: Abstraction has 1934 states and 3299 transitions. [2022-07-19 17:05:27,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 3299 transitions. [2022-07-19 17:05:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-19 17:05:27,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:27,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:27,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:05:27,183 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 862162313, now seen corresponding path program 1 times [2022-07-19 17:05:27,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:27,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163549937] [2022-07-19 17:05:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:05:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:05:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:05:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:05:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:05:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:05:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:05:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:05:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:27,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:27,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163549937] [2022-07-19 17:05:27,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163549937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:27,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:27,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:27,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069387906] [2022-07-19 17:05:27,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:27,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:27,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:27,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:27,257 INFO L87 Difference]: Start difference. First operand 1934 states and 3299 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:28,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:28,608 INFO L93 Difference]: Finished difference Result 4820 states and 8346 transitions. [2022-07-19 17:05:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:28,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-19 17:05:28,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:28,653 INFO L225 Difference]: With dead ends: 4820 [2022-07-19 17:05:28,654 INFO L226 Difference]: Without dead ends: 3132 [2022-07-19 17:05:28,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:28,659 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1388 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:28,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1514 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:05:28,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2022-07-19 17:05:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 2937. [2022-07-19 17:05:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2404 states have (on average 1.6555740432612314) internal successors, (3980), 2410 states have internal predecessors, (3980), 507 states have call successors, (507), 21 states have call predecessors, (507), 25 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2022-07-19 17:05:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 5041 transitions. [2022-07-19 17:05:28,834 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 5041 transitions. Word has length 135 [2022-07-19 17:05:28,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:28,834 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 5041 transitions. [2022-07-19 17:05:28,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 5041 transitions. [2022-07-19 17:05:28,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-19 17:05:28,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:28,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:28,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:05:28,845 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:28,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1974176637, now seen corresponding path program 1 times [2022-07-19 17:05:28,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:28,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162696055] [2022-07-19 17:05:28,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:28,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:05:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:05:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:05:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:05:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:05:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:05:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 17:05:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:05:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:28,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:28,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162696055] [2022-07-19 17:05:28,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162696055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:28,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:28,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:28,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555001504] [2022-07-19 17:05:28,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:28,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:28,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:28,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:28,924 INFO L87 Difference]: Start difference. First operand 2937 states and 5041 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:30,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:30,172 INFO L93 Difference]: Finished difference Result 7244 states and 12635 transitions. [2022-07-19 17:05:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:30,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-07-19 17:05:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:30,210 INFO L225 Difference]: With dead ends: 7244 [2022-07-19 17:05:30,211 INFO L226 Difference]: Without dead ends: 4757 [2022-07-19 17:05:30,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:30,217 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 1384 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:30,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 1517 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:05:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2022-07-19 17:05:30,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4562. [2022-07-19 17:05:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 3784 states have (on average 1.6598837209302326) internal successors, (6281), 3790 states have internal predecessors, (6281), 752 states have call successors, (752), 21 states have call predecessors, (752), 25 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2022-07-19 17:05:30,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 7858 transitions. [2022-07-19 17:05:30,374 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 7858 transitions. Word has length 136 [2022-07-19 17:05:30,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:30,374 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 7858 transitions. [2022-07-19 17:05:30,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:30,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 7858 transitions. [2022-07-19 17:05:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-19 17:05:30,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:30,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:30,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:05:30,388 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash 433434661, now seen corresponding path program 1 times [2022-07-19 17:05:30,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:30,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288364517] [2022-07-19 17:05:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:30,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:05:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:05:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:05:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:05:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:05:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:05:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:05:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:05:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:30,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:30,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288364517] [2022-07-19 17:05:30,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288364517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:30,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:30,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:30,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116535715] [2022-07-19 17:05:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:30,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:30,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:30,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:30,456 INFO L87 Difference]: Start difference. First operand 4562 states and 7858 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:31,932 INFO L93 Difference]: Finished difference Result 11290 states and 19795 transitions. [2022-07-19 17:05:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-07-19 17:05:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:31,961 INFO L225 Difference]: With dead ends: 11290 [2022-07-19 17:05:31,961 INFO L226 Difference]: Without dead ends: 7490 [2022-07-19 17:05:31,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:31,972 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 1379 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:31,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 1576 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:05:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2022-07-19 17:05:32,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 7295. [2022-07-19 17:05:32,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 6024 states have (on average 1.657702523240372) internal successors, (9986), 6030 states have internal predecessors, (9986), 1245 states have call successors, (1245), 21 states have call predecessors, (1245), 25 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2022-07-19 17:05:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 12593 transitions. [2022-07-19 17:05:32,332 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 12593 transitions. Word has length 137 [2022-07-19 17:05:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:32,332 INFO L495 AbstractCegarLoop]: Abstraction has 7295 states and 12593 transitions. [2022-07-19 17:05:32,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 12593 transitions. [2022-07-19 17:05:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-19 17:05:32,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:32,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:32,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:05:32,354 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 970115297, now seen corresponding path program 1 times [2022-07-19 17:05:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:32,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237904425] [2022-07-19 17:05:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:05:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:05:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:05:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:05:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:05:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:05:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:05:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:05:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237904425] [2022-07-19 17:05:32,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237904425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:32,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:32,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963929284] [2022-07-19 17:05:32,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:32,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:32,429 INFO L87 Difference]: Start difference. First operand 7295 states and 12593 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:33,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:33,986 INFO L93 Difference]: Finished difference Result 18625 states and 32679 transitions. [2022-07-19 17:05:33,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:33,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-07-19 17:05:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:34,027 INFO L225 Difference]: With dead ends: 18625 [2022-07-19 17:05:34,027 INFO L226 Difference]: Without dead ends: 12469 [2022-07-19 17:05:34,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:34,046 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 1382 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:34,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1514 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:05:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12469 states. [2022-07-19 17:05:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12469 to 12274. [2022-07-19 17:05:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12274 states, 10181 states have (on average 1.6575974855122286) internal successors, (16876), 10187 states have internal predecessors, (16876), 2067 states have call successors, (2067), 21 states have call predecessors, (2067), 25 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2022-07-19 17:05:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12274 states to 12274 states and 21205 transitions. [2022-07-19 17:05:34,568 INFO L78 Accepts]: Start accepts. Automaton has 12274 states and 21205 transitions. Word has length 138 [2022-07-19 17:05:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:34,569 INFO L495 AbstractCegarLoop]: Abstraction has 12274 states and 21205 transitions. [2022-07-19 17:05:34,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 12274 states and 21205 transitions. [2022-07-19 17:05:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-19 17:05:34,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:34,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:34,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:05:34,603 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1852964339, now seen corresponding path program 1 times [2022-07-19 17:05:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:34,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214118818] [2022-07-19 17:05:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:05:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:05:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:05:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:05:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:05:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:05:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:05:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 17:05:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:34,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:34,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214118818] [2022-07-19 17:05:34,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214118818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:34,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:34,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:34,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451850259] [2022-07-19 17:05:34,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:34,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:34,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:34,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:34,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:34,732 INFO L87 Difference]: Start difference. First operand 12274 states and 21205 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:36,447 INFO L93 Difference]: Finished difference Result 29583 states and 51644 transitions. [2022-07-19 17:05:36,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:36,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-07-19 17:05:36,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:36,505 INFO L225 Difference]: With dead ends: 29583 [2022-07-19 17:05:36,505 INFO L226 Difference]: Without dead ends: 19422 [2022-07-19 17:05:36,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:36,534 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 1375 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:36,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 1495 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:05:36,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19422 states. [2022-07-19 17:05:37,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19422 to 19227. [2022-07-19 17:05:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19227 states, 15931 states have (on average 1.6331680371602535) internal successors, (26018), 15937 states have internal predecessors, (26018), 3270 states have call successors, (3270), 21 states have call predecessors, (3270), 25 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2022-07-19 17:05:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 32897 transitions. [2022-07-19 17:05:37,329 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 32897 transitions. Word has length 139 [2022-07-19 17:05:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:37,329 INFO L495 AbstractCegarLoop]: Abstraction has 19227 states and 32897 transitions. [2022-07-19 17:05:37,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 32897 transitions. [2022-07-19 17:05:37,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 17:05:37,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:37,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:37,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 17:05:37,354 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:37,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:37,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1781029954, now seen corresponding path program 1 times [2022-07-19 17:05:37,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:37,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619415577] [2022-07-19 17:05:37,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:37,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:05:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:05:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:05:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:05:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:05:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:05:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-19 17:05:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 17:05:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:37,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:37,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619415577] [2022-07-19 17:05:37,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619415577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:37,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:37,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:37,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844435731] [2022-07-19 17:05:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:37,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:37,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:37,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:37,429 INFO L87 Difference]: Start difference. First operand 19227 states and 32897 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:39,680 INFO L93 Difference]: Finished difference Result 51015 states and 88764 transitions. [2022-07-19 17:05:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:39,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2022-07-19 17:05:39,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:39,821 INFO L225 Difference]: With dead ends: 51015 [2022-07-19 17:05:39,822 INFO L226 Difference]: Without dead ends: 34543 [2022-07-19 17:05:39,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:39,861 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 1373 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:39,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 1521 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:05:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34543 states. [2022-07-19 17:05:41,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34543 to 34348. [2022-07-19 17:05:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34348 states, 28602 states have (on average 1.6299909097265926) internal successors, (46621), 28608 states have internal predecessors, (46621), 5720 states have call successors, (5720), 21 states have call predecessors, (5720), 25 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2022-07-19 17:05:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34348 states to 34348 states and 58674 transitions. [2022-07-19 17:05:41,293 INFO L78 Accepts]: Start accepts. Automaton has 34348 states and 58674 transitions. Word has length 140 [2022-07-19 17:05:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:41,294 INFO L495 AbstractCegarLoop]: Abstraction has 34348 states and 58674 transitions. [2022-07-19 17:05:41,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 34348 states and 58674 transitions. [2022-07-19 17:05:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-19 17:05:41,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:41,325 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:41,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:05:41,326 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 318690285, now seen corresponding path program 1 times [2022-07-19 17:05:41,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:41,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078783527] [2022-07-19 17:05:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:41,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:05:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:05:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:05:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:05:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:05:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:05:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:05:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 17:05:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:41,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:41,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078783527] [2022-07-19 17:05:41,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078783527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:41,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:41,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955823490] [2022-07-19 17:05:41,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:41,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:41,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:41,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:41,399 INFO L87 Difference]: Start difference. First operand 34348 states and 58674 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:44,460 INFO L93 Difference]: Finished difference Result 93887 states and 162558 transitions. [2022-07-19 17:05:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:44,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2022-07-19 17:05:44,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:44,677 INFO L225 Difference]: With dead ends: 93887 [2022-07-19 17:05:44,678 INFO L226 Difference]: Without dead ends: 63210 [2022-07-19 17:05:44,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:44,745 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 1371 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:44,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 1524 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:05:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63210 states. [2022-07-19 17:05:47,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63210 to 63015. [2022-07-19 17:05:47,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63015 states, 52756 states have (on average 1.6258245507619986) internal successors, (85772), 52762 states have internal predecessors, (85772), 10233 states have call successors, (10233), 21 states have call predecessors, (10233), 25 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2022-07-19 17:05:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63015 states to 63015 states and 107383 transitions. [2022-07-19 17:05:47,728 INFO L78 Accepts]: Start accepts. Automaton has 63015 states and 107383 transitions. Word has length 141 [2022-07-19 17:05:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:47,728 INFO L495 AbstractCegarLoop]: Abstraction has 63015 states and 107383 transitions. [2022-07-19 17:05:47,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 63015 states and 107383 transitions. [2022-07-19 17:05:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 17:05:48,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:48,013 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:48,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 17:05:48,014 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:48,014 INFO L85 PathProgramCache]: Analyzing trace with hash 838217730, now seen corresponding path program 1 times [2022-07-19 17:05:48,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:48,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175637291] [2022-07-19 17:05:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:05:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:05:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:05:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:05:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:05:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:05:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:05:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 17:05:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 17:05:48,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:48,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175637291] [2022-07-19 17:05:48,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175637291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:05:48,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:05:48,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:05:48,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763826313] [2022-07-19 17:05:48,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:05:48,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:05:48,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:05:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:05:48,109 INFO L87 Difference]: Start difference. First operand 63015 states and 107383 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:52,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:05:52,603 INFO L93 Difference]: Finished difference Result 118263 states and 205192 transitions. [2022-07-19 17:05:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:05:52,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2022-07-19 17:05:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:05:53,025 INFO L225 Difference]: With dead ends: 118263 [2022-07-19 17:05:53,026 INFO L226 Difference]: Without dead ends: 118083 [2022-07-19 17:05:53,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 17:05:53,072 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1372 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:05:53,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 1516 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 17:05:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118083 states. [2022-07-19 17:05:57,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118083 to 117888. [2022-07-19 17:05:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117888 states, 99261 states have (on average 1.6206062804122465) internal successors, (160863), 99267 states have internal predecessors, (160863), 18601 states have call successors, (18601), 21 states have call predecessors, (18601), 25 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792) [2022-07-19 17:05:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117888 states to 117888 states and 200256 transitions. [2022-07-19 17:05:58,441 INFO L78 Accepts]: Start accepts. Automaton has 117888 states and 200256 transitions. Word has length 142 [2022-07-19 17:05:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:05:58,442 INFO L495 AbstractCegarLoop]: Abstraction has 117888 states and 200256 transitions. [2022-07-19 17:05:58,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:05:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 117888 states and 200256 transitions. [2022-07-19 17:05:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-19 17:05:58,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:05:58,498 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:05:58,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 17:05:58,498 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:05:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:05:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash 380690700, now seen corresponding path program 1 times [2022-07-19 17:05:58,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:05:58,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059205701] [2022-07-19 17:05:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:58,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:05:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:05:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:05:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:05:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:05:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:05:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:05:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:05:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:05:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:05:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:05:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:05:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:05:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:05:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 17:05:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 17:05:58,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:05:58,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059205701] [2022-07-19 17:05:58,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059205701] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:05:58,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303904746] [2022-07-19 17:05:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:05:58,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:05:58,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:05:58,616 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:05:58,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 17:05:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:05:58,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 17:05:58,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:05:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-19 17:05:58,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:05:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 17:05:59,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303904746] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:05:59,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:05:59,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2022-07-19 17:05:59,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637691883] [2022-07-19 17:05:59,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:05:59,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-19 17:05:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:05:59,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-19 17:05:59,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-07-19 17:05:59,234 INFO L87 Difference]: Start difference. First operand 117888 states and 200256 transitions. Second operand has 21 states, 21 states have (on average 11.0) internal successors, (231), 16 states have internal predecessors, (231), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2022-07-19 17:06:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:06:11,091 INFO L93 Difference]: Finished difference Result 236382 states and 412420 transitions. [2022-07-19 17:06:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-07-19 17:06:11,092 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.0) internal successors, (231), 16 states have internal predecessors, (231), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) Word has length 143 [2022-07-19 17:06:11,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:06:12,329 INFO L225 Difference]: With dead ends: 236382 [2022-07-19 17:06:12,329 INFO L226 Difference]: Without dead ends: 236208 [2022-07-19 17:06:12,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=767, Invalid=3265, Unknown=0, NotChecked=0, Total=4032 [2022-07-19 17:06:12,421 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 4411 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 8799 mSolverCounterSat, 2003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4426 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 10802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2003 IncrementalHoareTripleChecker+Valid, 8799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:06:12,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4426 Valid, 3436 Invalid, 10802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2003 Valid, 8799 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-19 17:06:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236208 states. [2022-07-19 17:06:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236208 to 235777. [2022-07-19 17:06:22,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235777 states, 198525 states have (on average 1.6206120136003022) internal successors, (321732), 198534 states have internal predecessors, (321732), 37200 states have call successors, (37200), 44 states have call predecessors, (37200), 51 states have return successors, (43762), 37198 states have call predecessors, (43762), 37198 states have call successors, (43762) [2022-07-19 17:06:23,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235777 states to 235777 states and 402694 transitions. [2022-07-19 17:06:23,195 INFO L78 Accepts]: Start accepts. Automaton has 235777 states and 402694 transitions. Word has length 143 [2022-07-19 17:06:23,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:06:23,196 INFO L495 AbstractCegarLoop]: Abstraction has 235777 states and 402694 transitions. [2022-07-19 17:06:23,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.0) internal successors, (231), 16 states have internal predecessors, (231), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2022-07-19 17:06:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 235777 states and 402694 transitions. [2022-07-19 17:06:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-19 17:06:23,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:06:23,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:06:23,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 17:06:23,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:06:23,544 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:06:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:06:23,545 INFO L85 PathProgramCache]: Analyzing trace with hash -512731193, now seen corresponding path program 1 times [2022-07-19 17:06:23,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:06:23,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325120030] [2022-07-19 17:06:23,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:06:23,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:06:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:06:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:06:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:06:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:06:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:06:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:06:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:06:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:06:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:06:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:06:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:06:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:06:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:06:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 17:06:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-19 17:06:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-19 17:06:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-19 17:06:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-19 17:06:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:06:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-19 17:06:23,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:06:23,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325120030] [2022-07-19 17:06:23,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325120030] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:06:23,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:06:23,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 17:06:23,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709072607] [2022-07-19 17:06:23,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:06:23,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 17:06:23,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:06:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 17:06:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:06:23,717 INFO L87 Difference]: Start difference. First operand 235777 states and 402694 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)