./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_spec27_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 c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:04:01,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:04:01,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:04:01,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:04:01,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:04:01,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:04:01,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:04:01,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:04:01,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:04:01,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:04:01,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:04:01,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:04:01,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:04:01,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:04:01,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:04:01,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:04:01,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:04:01,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:04:01,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:04:01,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:04:01,346 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:04:01,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:04:01,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:04:01,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:04:01,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:04:01,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:04:01,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:04:01,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:04:01,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:04:01,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:04:01,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:04:01,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:04:01,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:04:01,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:04:01,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:04:01,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:04:01,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:04:01,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:04:01,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:04:01,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:04:01,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:04:01,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:04:01,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:04:01,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:04:01,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:04:01,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:04:01,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:04:01,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:04:01,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:04:01,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:04:01,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:04:01,409 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:04:01,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:04:01,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:04:01,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:04:01,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:04:01,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:04:01,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:04:01,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:04:01,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:04:01,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:04:01,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:04:01,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:04:01,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:04:01,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:04:01,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:04:01,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:04:01,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:04:01,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:04:01,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:04:01,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:04:01,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:04:01,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:04:01,427 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:04:01,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:04:01,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:04:01,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a [2022-07-12 06:04:01,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:04:01,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:04:01,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:04:01,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:04:01,981 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:04:01,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2022-07-12 06:04:02,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31ec2f46/7ac14d98a385419891be40262c0f57d4/FLAG03588531e [2022-07-12 06:04:02,743 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:04:02,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2022-07-12 06:04:02,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31ec2f46/7ac14d98a385419891be40262c0f57d4/FLAG03588531e [2022-07-12 06:04:03,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d31ec2f46/7ac14d98a385419891be40262c0f57d4 [2022-07-12 06:04:03,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:04:03,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:04:03,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:04:03,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:04:03,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:04:03,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:04:03" (1/1) ... [2022-07-12 06:04:03,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d96d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:03, skipping insertion in model container [2022-07-12 06:04:03,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:04:03" (1/1) ... [2022-07-12 06:04:03,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:04:03,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:04:03,853 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_spec27_product25.cil.c[58911,58924] [2022-07-12 06:04:03,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:04:03,912 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:04:04,010 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_spec27_product25.cil.c[58911,58924] [2022-07-12 06:04:04,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:04:04,046 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:04:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04 WrapperNode [2022-07-12 06:04:04,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:04:04,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:04:04,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:04:04,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:04:04,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,178 INFO L137 Inliner]: procedures = 130, calls = 219, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1027 [2022-07-12 06:04:04,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:04:04,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:04:04,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:04:04,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:04:04,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:04:04,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:04:04,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:04:04,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:04:04,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (1/1) ... [2022-07-12 06:04:04,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:04:04,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:04,333 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) [2022-07-12 06:04:04,348 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 [2022-07-12 06:04:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-12 06:04:04,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-12 06:04:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-12 06:04:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-12 06:04:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-07-12 06:04:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-07-12 06:04:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-12 06:04:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-12 06:04:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-12 06:04:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-12 06:04:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-12 06:04:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-12 06:04:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-12 06:04:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-12 06:04:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-12 06:04:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-12 06:04:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-12 06:04:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-12 06:04:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-12 06:04:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-12 06:04:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-12 06:04:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-12 06:04:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-12 06:04:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:04:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-12 06:04:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-12 06:04:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-12 06:04:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-12 06:04:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-12 06:04:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-12 06:04:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-12 06:04:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-12 06:04:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-12 06:04:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-12 06:04:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-07-12 06:04:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-07-12 06:04:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-07-12 06:04:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-07-12 06:04:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-12 06:04:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-12 06:04:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-12 06:04:04,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-12 06:04:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-12 06:04:04,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-12 06:04:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:04:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-12 06:04:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-12 06:04:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-12 06:04:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-12 06:04:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:04:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:04:04,694 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:04:04,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:04:05,353 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:04:05,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:04:05,363 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 06:04:05,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:04:05 BoogieIcfgContainer [2022-07-12 06:04:05,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:04:05,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:04:05,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:04:05,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:04:05,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:04:03" (1/3) ... [2022-07-12 06:04:05,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480dc906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:04:05, skipping insertion in model container [2022-07-12 06:04:05,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:04:04" (2/3) ... [2022-07-12 06:04:05,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480dc906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:04:05, skipping insertion in model container [2022-07-12 06:04:05,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:04:05" (3/3) ... [2022-07-12 06:04:05,373 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2022-07-12 06:04:05,386 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:04:05,387 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:04:05,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:04:05,508 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@484e59aa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3530c943 [2022-07-12 06:04:05,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:04:05,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 392 states, 309 states have (on average 1.5598705501618122) internal successors, (482), 312 states have internal predecessors, (482), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-07-12 06:04:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-12 06:04:05,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:05,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:05,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:05,556 INFO L85 PathProgramCache]: Analyzing trace with hash 596273931, now seen corresponding path program 1 times [2022-07-12 06:04:05,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:05,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404117018] [2022-07-12 06:04:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:05,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:04:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:04:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:04:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 06:04:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:04:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 06:04:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 06:04:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:04:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 06:04:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:04:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:04:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:04:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 06:04:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:04:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:04:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:06,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:06,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404117018] [2022-07-12 06:04:06,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404117018] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:04:06,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544423049] [2022-07-12 06:04:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:06,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:06,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:06,122 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) [2022-07-12 06:04:06,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 06:04:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:06,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 06:04:06,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:04:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-12 06:04:06,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:04:06,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544423049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:06,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:04:06,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-12 06:04:06,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972671466] [2022-07-12 06:04:06,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:06,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:04:06,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:06,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:04:06,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:04:06,555 INFO L87 Difference]: Start difference. First operand has 392 states, 309 states have (on average 1.5598705501618122) internal successors, (482), 312 states have internal predecessors, (482), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:06,613 INFO L93 Difference]: Finished difference Result 591 states and 886 transitions. [2022-07-12 06:04:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:04:06,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2022-07-12 06:04:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:06,631 INFO L225 Difference]: With dead ends: 591 [2022-07-12 06:04:06,635 INFO L226 Difference]: Without dead ends: 385 [2022-07-12 06:04:06,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:04:06,646 INFO L413 NwaCegarLoop]: 594 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, 594 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 [2022-07-12 06:04:06,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:04:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-07-12 06:04:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2022-07-12 06:04:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 303 states have (on average 1.5544554455445545) internal successors, (471), 305 states have internal predecessors, (471), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-07-12 06:04:06,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 586 transitions. [2022-07-12 06:04:06,719 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 586 transitions. Word has length 136 [2022-07-12 06:04:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:06,720 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 586 transitions. [2022-07-12 06:04:06,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 586 transitions. [2022-07-12 06:04:06,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 06:04:06,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:06,726 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:06,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 06:04:06,951 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 [2022-07-12 06:04:06,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:06,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1738293804, now seen corresponding path program 1 times [2022-07-12 06:04:06,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:06,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060896253] [2022-07-12 06:04:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:04:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:04:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:04:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 06:04:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 06:04:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 06:04:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:04:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 06:04:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 06:04:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 06:04:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:04:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 06:04:07,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:07,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060896253] [2022-07-12 06:04:07,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060896253] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:04:07,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479798560] [2022-07-12 06:04:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:07,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:07,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:07,155 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) [2022-07-12 06:04:07,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 06:04:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 06:04:07,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:04:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:04:07,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:04:07,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479798560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:07,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:04:07,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-12 06:04:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592669849] [2022-07-12 06:04:07,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:07,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:04:07,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:07,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:04:07,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:04:07,484 INFO L87 Difference]: Start difference. First operand 385 states and 586 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:07,560 INFO L93 Difference]: Finished difference Result 581 states and 864 transitions. [2022-07-12 06:04:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:04:07,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 118 [2022-07-12 06:04:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:07,565 INFO L225 Difference]: With dead ends: 581 [2022-07-12 06:04:07,565 INFO L226 Difference]: Without dead ends: 388 [2022-07-12 06:04:07,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:04:07,569 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 1 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1166 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 [2022-07-12 06:04:07,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:04:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-12 06:04:07,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 387. [2022-07-12 06:04:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.5508196721311476) internal successors, (473), 307 states have internal predecessors, (473), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-07-12 06:04:07,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 588 transitions. [2022-07-12 06:04:07,611 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 588 transitions. Word has length 118 [2022-07-12 06:04:07,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:07,611 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 588 transitions. [2022-07-12 06:04:07,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 588 transitions. [2022-07-12 06:04:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 06:04:07,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:07,615 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:07,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 06:04:07,839 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 [2022-07-12 06:04:07,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:07,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:07,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1778661451, now seen corresponding path program 1 times [2022-07-12 06:04:07,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:07,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477386868] [2022-07-12 06:04:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:07,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:04:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:04:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:04:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 06:04:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 06:04:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 06:04:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 06:04:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 06:04:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:04:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 06:04:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:04:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 06:04:07,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:07,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477386868] [2022-07-12 06:04:07,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477386868] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:04:07,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852527407] [2022-07-12 06:04:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:07,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:07,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:07,978 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) [2022-07-12 06:04:07,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 06:04:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 06:04:08,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:04:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:04:08,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:04:08,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852527407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:08,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:04:08,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-12 06:04:08,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716006835] [2022-07-12 06:04:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:08,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:04:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:04:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:04:08,299 INFO L87 Difference]: Start difference. First operand 387 states and 588 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:08,341 INFO L93 Difference]: Finished difference Result 822 states and 1268 transitions. [2022-07-12 06:04:08,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:04:08,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2022-07-12 06:04:08,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:08,346 INFO L225 Difference]: With dead ends: 822 [2022-07-12 06:04:08,346 INFO L226 Difference]: Without dead ends: 462 [2022-07-12 06:04:08,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:04:08,351 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 134 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1147 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 [2022-07-12 06:04:08,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1147 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:04:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-07-12 06:04:08,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 454. [2022-07-12 06:04:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 358 states have (on average 1.5698324022346368) internal successors, (562), 360 states have internal predecessors, (562), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-12 06:04:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 705 transitions. [2022-07-12 06:04:08,384 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 705 transitions. Word has length 124 [2022-07-12 06:04:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:08,385 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 705 transitions. [2022-07-12 06:04:08,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 705 transitions. [2022-07-12 06:04:08,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-12 06:04:08,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:08,388 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:04:08,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 06:04:08,604 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 [2022-07-12 06:04:08,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:08,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2093375302, now seen corresponding path program 1 times [2022-07-12 06:04:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:08,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577900499] [2022-07-12 06:04:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:04:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:04:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:04:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 06:04:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 06:04:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 06:04:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 06:04:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 06:04:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 06:04:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:04:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:04:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:04:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 06:04:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 06:04:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 06:04:08,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:08,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577900499] [2022-07-12 06:04:08,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577900499] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:04:08,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846640220] [2022-07-12 06:04:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:08,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:08,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:08,766 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) [2022-07-12 06:04:08,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 06:04:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 06:04:09,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:04:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 06:04:09,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:04:09,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846640220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:09,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:04:09,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-12 06:04:09,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11946236] [2022-07-12 06:04:09,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:04:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:04:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:04:09,154 INFO L87 Difference]: Start difference. First operand 454 states and 705 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 06:04:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:09,240 INFO L93 Difference]: Finished difference Result 899 states and 1400 transitions. [2022-07-12 06:04:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:04:09,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2022-07-12 06:04:09,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:09,246 INFO L225 Difference]: With dead ends: 899 [2022-07-12 06:04:09,246 INFO L226 Difference]: Without dead ends: 456 [2022-07-12 06:04:09,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:09,253 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 152 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2133 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 [2022-07-12 06:04:09,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2133 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:04:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-07-12 06:04:09,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-07-12 06:04:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 359 states have (on average 1.5682451253481895) internal successors, (563), 362 states have internal predecessors, (563), 72 states have call successors, (72), 23 states have call predecessors, (72), 24 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2022-07-12 06:04:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 708 transitions. [2022-07-12 06:04:09,301 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 708 transitions. Word has length 144 [2022-07-12 06:04:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:09,301 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 708 transitions. [2022-07-12 06:04:09,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 06:04:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 708 transitions. [2022-07-12 06:04:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-12 06:04:09,304 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:09,305 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:09,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 06:04:09,520 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 [2022-07-12 06:04:09,520 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1285036805, now seen corresponding path program 1 times [2022-07-12 06:04:09,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:09,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885643335] [2022-07-12 06:04:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:09,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 06:04:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:04:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 06:04:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 06:04:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 06:04:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 06:04:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 06:04:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:04:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:04:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:04:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:04:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:04:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 06:04:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 06:04:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 06:04:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885643335] [2022-07-12 06:04:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885643335] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:04:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023810847] [2022-07-12 06:04:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:09,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:09,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:09,702 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) [2022-07-12 06:04:09,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 06:04:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:09,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 06:04:09,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:04:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 06:04:10,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:04:10,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023810847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:10,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:04:10,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-12 06:04:10,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557422121] [2022-07-12 06:04:10,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:10,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:04:10,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:10,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:04:10,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-12 06:04:10,038 INFO L87 Difference]: Start difference. First operand 456 states and 708 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 06:04:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:10,118 INFO L93 Difference]: Finished difference Result 901 states and 1405 transitions. [2022-07-12 06:04:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:04:10,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2022-07-12 06:04:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:10,122 INFO L225 Difference]: With dead ends: 901 [2022-07-12 06:04:10,123 INFO L226 Difference]: Without dead ends: 458 [2022-07-12 06:04:10,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-12 06:04:10,125 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 151 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2122 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 [2022-07-12 06:04:10,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2122 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:04:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-07-12 06:04:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-07-12 06:04:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 360 states have (on average 1.5666666666666667) internal successors, (564), 364 states have internal predecessors, (564), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-07-12 06:04:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 714 transitions. [2022-07-12 06:04:10,164 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 714 transitions. Word has length 145 [2022-07-12 06:04:10,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:10,165 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 714 transitions. [2022-07-12 06:04:10,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 06:04:10,165 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 714 transitions. [2022-07-12 06:04:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-12 06:04:10,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:10,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:10,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-12 06:04:10,388 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 [2022-07-12 06:04:10,388 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:10,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1548137547, now seen corresponding path program 1 times [2022-07-12 06:04:10,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:10,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822482708] [2022-07-12 06:04:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:10,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 06:04:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 06:04:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 06:04:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 06:04:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 06:04:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 06:04:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 06:04:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:04:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:04:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:04:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 06:04:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 06:04:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 06:04:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 06:04:10,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:10,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822482708] [2022-07-12 06:04:10,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822482708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:10,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:10,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 06:04:10,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584383381] [2022-07-12 06:04:10,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:10,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 06:04:10,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:10,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 06:04:10,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:04:10,508 INFO L87 Difference]: Start difference. First operand 458 states and 714 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 06:04:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:12,769 INFO L93 Difference]: Finished difference Result 1062 states and 1672 transitions. [2022-07-12 06:04:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 06:04:12,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2022-07-12 06:04:12,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:12,794 INFO L225 Difference]: With dead ends: 1062 [2022-07-12 06:04:12,794 INFO L226 Difference]: Without dead ends: 627 [2022-07-12 06:04:12,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:04:12,798 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1433 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:12,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 1677 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 06:04:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-07-12 06:04:12,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 458. [2022-07-12 06:04:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 360 states have (on average 1.5666666666666667) internal successors, (564), 364 states have internal predecessors, (564), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2022-07-12 06:04:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 713 transitions. [2022-07-12 06:04:12,910 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 713 transitions. Word has length 146 [2022-07-12 06:04:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:12,910 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 713 transitions. [2022-07-12 06:04:12,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 06:04:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 713 transitions. [2022-07-12 06:04:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-12 06:04:12,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:12,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:12,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:04:12,914 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:12,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1696291680, now seen corresponding path program 1 times [2022-07-12 06:04:12,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:12,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692392112] [2022-07-12 06:04:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:12,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 06:04:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 06:04:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 06:04:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 06:04:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 06:04:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 06:04:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:04:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:04:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 06:04:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 06:04:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 06:04:13,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:13,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692392112] [2022-07-12 06:04:13,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692392112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:13,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:13,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 06:04:13,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656339865] [2022-07-12 06:04:13,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:13,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 06:04:13,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:13,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 06:04:13,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:04:13,075 INFO L87 Difference]: Start difference. First operand 458 states and 713 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 06:04:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:15,359 INFO L93 Difference]: Finished difference Result 1064 states and 1675 transitions. [2022-07-12 06:04:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 06:04:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 128 [2022-07-12 06:04:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:15,365 INFO L225 Difference]: With dead ends: 1064 [2022-07-12 06:04:15,365 INFO L226 Difference]: Without dead ends: 629 [2022-07-12 06:04:15,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:04:15,368 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 1424 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:15,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 1681 Invalid, 2942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 06:04:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-07-12 06:04:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 460. [2022-07-12 06:04:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 361 states have (on average 1.5650969529085872) internal successors, (565), 366 states have internal predecessors, (565), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2022-07-12 06:04:15,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 716 transitions. [2022-07-12 06:04:15,406 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 716 transitions. Word has length 128 [2022-07-12 06:04:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:15,406 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 716 transitions. [2022-07-12 06:04:15,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 06:04:15,407 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 716 transitions. [2022-07-12 06:04:15,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-12 06:04:15,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:15,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:15,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:04:15,410 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:15,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:15,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1698489008, now seen corresponding path program 1 times [2022-07-12 06:04:15,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:15,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100896232] [2022-07-12 06:04:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:15,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 06:04:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 06:04:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:04:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 06:04:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 06:04:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:04:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:04:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 06:04:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 06:04:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 06:04:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 06:04:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:04:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 06:04:15,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:15,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100896232] [2022-07-12 06:04:15,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100896232] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:15,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:15,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 06:04:15,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673220660] [2022-07-12 06:04:15,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:15,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 06:04:15,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 06:04:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:04:15,625 INFO L87 Difference]: Start difference. First operand 460 states and 716 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 06:04:18,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:18,580 INFO L93 Difference]: Finished difference Result 1062 states and 1670 transitions. [2022-07-12 06:04:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 06:04:18,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2022-07-12 06:04:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:18,586 INFO L225 Difference]: With dead ends: 1062 [2022-07-12 06:04:18,586 INFO L226 Difference]: Without dead ends: 629 [2022-07-12 06:04:18,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-12 06:04:18,588 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 1565 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4276 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 4889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 4276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:18,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1565 Valid, 2038 Invalid, 4889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 4276 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 06:04:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-07-12 06:04:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 460. [2022-07-12 06:04:18,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 361 states have (on average 1.5650969529085872) internal successors, (565), 366 states have internal predecessors, (565), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-07-12 06:04:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 715 transitions. [2022-07-12 06:04:18,617 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 715 transitions. Word has length 148 [2022-07-12 06:04:18,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:18,617 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 715 transitions. [2022-07-12 06:04:18,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 06:04:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 715 transitions. [2022-07-12 06:04:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-12 06:04:18,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:18,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:18,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:04:18,620 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:18,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1410393638, now seen corresponding path program 2 times [2022-07-12 06:04:18,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:18,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984788736] [2022-07-12 06:04:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 06:04:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 06:04:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 06:04:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 06:04:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 06:04:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:04:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 06:04:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 06:04:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 06:04:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:04:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 06:04:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 06:04:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 06:04:18,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:18,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984788736] [2022-07-12 06:04:18,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984788736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:18,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:18,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 06:04:18,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473038110] [2022-07-12 06:04:18,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:18,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 06:04:18,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:18,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 06:04:18,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:04:18,808 INFO L87 Difference]: Start difference. First operand 460 states and 715 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 06:04:21,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:21,253 INFO L93 Difference]: Finished difference Result 1064 states and 1676 transitions. [2022-07-12 06:04:21,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 06:04:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2022-07-12 06:04:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:21,260 INFO L225 Difference]: With dead ends: 1064 [2022-07-12 06:04:21,260 INFO L226 Difference]: Without dead ends: 631 [2022-07-12 06:04:21,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-12 06:04:21,263 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 1561 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4314 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 4922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 4314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:21,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 2038 Invalid, 4922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 4314 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 06:04:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-07-12 06:04:21,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 462. [2022-07-12 06:04:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 362 states have (on average 1.5635359116022098) internal successors, (566), 368 states have internal predecessors, (566), 72 states have call successors, (72), 23 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-07-12 06:04:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 721 transitions. [2022-07-12 06:04:21,294 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 721 transitions. Word has length 149 [2022-07-12 06:04:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:21,294 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 721 transitions. [2022-07-12 06:04:21,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 06:04:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 721 transitions. [2022-07-12 06:04:21,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 06:04:21,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:21,297 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:21,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:04:21,297 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:21,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1081330841, now seen corresponding path program 1 times [2022-07-12 06:04:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:21,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894114282] [2022-07-12 06:04:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 06:04:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 06:04:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:04:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 06:04:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 06:04:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 06:04:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:04:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:04:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-12 06:04:21,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:21,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894114282] [2022-07-12 06:04:21,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894114282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:21,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:21,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 06:04:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863061401] [2022-07-12 06:04:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:21,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 06:04:21,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:21,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 06:04:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:04:21,408 INFO L87 Difference]: Start difference. First operand 462 states and 721 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 06:04:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:23,134 INFO L93 Difference]: Finished difference Result 1066 states and 1679 transitions. [2022-07-12 06:04:23,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 06:04:23,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 131 [2022-07-12 06:04:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:23,139 INFO L225 Difference]: With dead ends: 1066 [2022-07-12 06:04:23,139 INFO L226 Difference]: Without dead ends: 631 [2022-07-12 06:04:23,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-12 06:04:23,141 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 1427 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:23,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1676 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 06:04:23,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-07-12 06:04:23,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 462. [2022-07-12 06:04:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 362 states have (on average 1.5635359116022098) internal successors, (566), 368 states have internal predecessors, (566), 72 states have call successors, (72), 23 states have call predecessors, (72), 27 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-07-12 06:04:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 721 transitions. [2022-07-12 06:04:23,170 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 721 transitions. Word has length 131 [2022-07-12 06:04:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:23,171 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 721 transitions. [2022-07-12 06:04:23,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 06:04:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 721 transitions. [2022-07-12 06:04:23,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 06:04:23,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:23,173 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:23,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 06:04:23,174 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:23,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:23,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1667607063, now seen corresponding path program 1 times [2022-07-12 06:04:23,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:23,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549552826] [2022-07-12 06:04:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 06:04:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 06:04:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:04:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 06:04:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 06:04:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 06:04:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:04:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:04:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:23,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:23,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549552826] [2022-07-12 06:04:23,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549552826] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:04:23,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013125285] [2022-07-12 06:04:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:23,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:23,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:04:23,264 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) [2022-07-12 06:04:23,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 06:04:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:23,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 06:04:23,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:04:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:23,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:04:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:23,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013125285] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:04:23,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:04:23,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-12 06:04:23,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391156867] [2022-07-12 06:04:23,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:04:23,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 06:04:23,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:23,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 06:04:23,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:04:23,601 INFO L87 Difference]: Start difference. First operand 462 states and 721 transitions. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 7 states have internal predecessors, (127), 2 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 06:04:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:25,386 INFO L93 Difference]: Finished difference Result 1266 states and 2068 transitions. [2022-07-12 06:04:25,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 06:04:25,387 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 7 states have internal predecessors, (127), 2 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 131 [2022-07-12 06:04:25,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:25,396 INFO L225 Difference]: With dead ends: 1266 [2022-07-12 06:04:25,396 INFO L226 Difference]: Without dead ends: 1073 [2022-07-12 06:04:25,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:04:25,398 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 1819 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:25,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 2233 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 06:04:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-07-12 06:04:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 880. [2022-07-12 06:04:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 701 states have (on average 1.6248216833095577) internal successors, (1139), 707 states have internal predecessors, (1139), 151 states have call successors, (151), 23 states have call predecessors, (151), 27 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2022-07-12 06:04:25,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1462 transitions. [2022-07-12 06:04:25,456 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1462 transitions. Word has length 131 [2022-07-12 06:04:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:25,456 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1462 transitions. [2022-07-12 06:04:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 7 states have internal predecessors, (127), 2 states have call successors, (36), 6 states have call predecessors, (36), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 06:04:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1462 transitions. [2022-07-12 06:04:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-12 06:04:25,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:25,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:25,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 06:04:25,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:04:25,688 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:25,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1503956558, now seen corresponding path program 1 times [2022-07-12 06:04:25,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:25,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623090378] [2022-07-12 06:04:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:25,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 06:04:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 06:04:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 06:04:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 06:04:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:04:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:04:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:04:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:04:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:04:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 06:04:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 06:04:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 06:04:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 06:04:25,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:25,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623090378] [2022-07-12 06:04:25,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623090378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:25,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:25,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:25,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446958732] [2022-07-12 06:04:25,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:25,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:25,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:25,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:25,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:25,816 INFO L87 Difference]: Start difference. First operand 880 states and 1462 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:27,290 INFO L93 Difference]: Finished difference Result 2284 states and 3869 transitions. [2022-07-12 06:04:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2022-07-12 06:04:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:27,298 INFO L225 Difference]: With dead ends: 2284 [2022-07-12 06:04:27,298 INFO L226 Difference]: Without dead ends: 1472 [2022-07-12 06:04:27,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:27,302 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 1421 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:27,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1563 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 06:04:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-07-12 06:04:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1295. [2022-07-12 06:04:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1037 states have (on average 1.6383799421407907) internal successors, (1699), 1043 states have internal predecessors, (1699), 230 states have call successors, (230), 23 states have call predecessors, (230), 27 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2022-07-12 06:04:27,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 2190 transitions. [2022-07-12 06:04:27,379 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 2190 transitions. Word has length 156 [2022-07-12 06:04:27,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:27,379 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 2190 transitions. [2022-07-12 06:04:27,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:27,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 2190 transitions. [2022-07-12 06:04:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-12 06:04:27,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:27,386 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:27,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 06:04:27,387 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:27,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:27,387 INFO L85 PathProgramCache]: Analyzing trace with hash -171115450, now seen corresponding path program 1 times [2022-07-12 06:04:27,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:27,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068333891] [2022-07-12 06:04:27,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:27,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 06:04:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 06:04:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 06:04:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 06:04:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:04:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:04:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:04:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 06:04:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:27,487 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:27,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:27,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068333891] [2022-07-12 06:04:27,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068333891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:27,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:27,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:27,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925153418] [2022-07-12 06:04:27,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:27,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:27,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:27,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:27,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:27,490 INFO L87 Difference]: Start difference. First operand 1295 states and 2190 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:28,922 INFO L93 Difference]: Finished difference Result 3298 states and 5647 transitions. [2022-07-12 06:04:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:28,923 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2022-07-12 06:04:28,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:28,932 INFO L225 Difference]: With dead ends: 3298 [2022-07-12 06:04:28,932 INFO L226 Difference]: Without dead ends: 2124 [2022-07-12 06:04:28,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:28,938 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 1420 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:28,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1506 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:04:28,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2022-07-12 06:04:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1947. [2022-07-12 06:04:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1570 states have (on average 1.6471337579617835) internal successors, (2586), 1576 states have internal predecessors, (2586), 349 states have call successors, (349), 23 states have call predecessors, (349), 27 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2022-07-12 06:04:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 3315 transitions. [2022-07-12 06:04:29,045 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 3315 transitions. Word has length 138 [2022-07-12 06:04:29,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:29,046 INFO L495 AbstractCegarLoop]: Abstraction has 1947 states and 3315 transitions. [2022-07-12 06:04:29,046 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 3315 transitions. [2022-07-12 06:04:29,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-12 06:04:29,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:29,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:29,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 06:04:29,057 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:29,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:29,057 INFO L85 PathProgramCache]: Analyzing trace with hash 2070131414, now seen corresponding path program 1 times [2022-07-12 06:04:29,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:29,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330484421] [2022-07-12 06:04:29,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:29,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 06:04:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 06:04:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 06:04:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:04:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:04:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:04:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:04:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 06:04:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 06:04:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:29,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:29,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330484421] [2022-07-12 06:04:29,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330484421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:29,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:29,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:29,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173941927] [2022-07-12 06:04:29,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:29,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:29,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:29,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:29,175 INFO L87 Difference]: Start difference. First operand 1947 states and 3315 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:30,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:30,603 INFO L93 Difference]: Finished difference Result 4828 states and 8349 transitions. [2022-07-12 06:04:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:30,604 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-07-12 06:04:30,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:30,618 INFO L225 Difference]: With dead ends: 4828 [2022-07-12 06:04:30,619 INFO L226 Difference]: Without dead ends: 3127 [2022-07-12 06:04:30,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:30,625 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1417 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:30,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 1495 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:04:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2022-07-12 06:04:30,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 2950. [2022-07-12 06:04:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2411 states have (on average 1.6540854417254252) internal successors, (3988), 2417 states have internal predecessors, (3988), 511 states have call successors, (511), 23 states have call predecessors, (511), 27 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2022-07-12 06:04:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5057 transitions. [2022-07-12 06:04:30,822 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5057 transitions. Word has length 139 [2022-07-12 06:04:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:30,822 INFO L495 AbstractCegarLoop]: Abstraction has 2950 states and 5057 transitions. [2022-07-12 06:04:30,823 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5057 transitions. [2022-07-12 06:04:30,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 06:04:30,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:30,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:30,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 06:04:30,836 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:30,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2140926361, now seen corresponding path program 1 times [2022-07-12 06:04:30,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:30,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329567047] [2022-07-12 06:04:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 06:04:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 06:04:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 06:04:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:04:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:04:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:04:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 06:04:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 06:04:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 06:04:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:30,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:30,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329567047] [2022-07-12 06:04:30,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329567047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:30,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:30,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082010106] [2022-07-12 06:04:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:30,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:30,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:30,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:30,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:30,930 INFO L87 Difference]: Start difference. First operand 2950 states and 5057 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:32,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:32,394 INFO L93 Difference]: Finished difference Result 7252 states and 12638 transitions. [2022-07-12 06:04:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:32,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2022-07-12 06:04:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:32,419 INFO L225 Difference]: With dead ends: 7252 [2022-07-12 06:04:32,419 INFO L226 Difference]: Without dead ends: 4752 [2022-07-12 06:04:32,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:32,430 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1413 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:32,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 1495 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:04:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4752 states. [2022-07-12 06:04:32,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4752 to 4575. [2022-07-12 06:04:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 3791 states have (on average 1.6589290424690055) internal successors, (6289), 3797 states have internal predecessors, (6289), 756 states have call successors, (756), 23 states have call predecessors, (756), 27 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2022-07-12 06:04:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 7874 transitions. [2022-07-12 06:04:32,715 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 7874 transitions. Word has length 140 [2022-07-12 06:04:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:32,716 INFO L495 AbstractCegarLoop]: Abstraction has 4575 states and 7874 transitions. [2022-07-12 06:04:32,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 7874 transitions. [2022-07-12 06:04:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-12 06:04:32,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:32,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:32,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 06:04:32,762 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:32,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1465925072, now seen corresponding path program 1 times [2022-07-12 06:04:32,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:32,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784708293] [2022-07-12 06:04:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 06:04:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 06:04:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 06:04:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 06:04:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:04:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:04:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 06:04:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 06:04:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 06:04:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 06:04:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 06:04:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 06:04:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 06:04:32,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:32,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784708293] [2022-07-12 06:04:32,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784708293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:32,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:32,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:32,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5165618] [2022-07-12 06:04:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:32,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:32,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:32,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:32,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:32,863 INFO L87 Difference]: Start difference. First operand 4575 states and 7874 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:34,483 INFO L93 Difference]: Finished difference Result 11298 states and 19798 transitions. [2022-07-12 06:04:34,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:34,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2022-07-12 06:04:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:34,522 INFO L225 Difference]: With dead ends: 11298 [2022-07-12 06:04:34,523 INFO L226 Difference]: Without dead ends: 7485 [2022-07-12 06:04:34,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:34,539 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 1414 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:34,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1549 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 06:04:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7485 states. [2022-07-12 06:04:34,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7485 to 7308. [2022-07-12 06:04:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7308 states, 6031 states have (on average 1.6571049577184547) internal successors, (9994), 6037 states have internal predecessors, (9994), 1249 states have call successors, (1249), 23 states have call predecessors, (1249), 27 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2022-07-12 06:04:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7308 states to 7308 states and 12609 transitions. [2022-07-12 06:04:34,984 INFO L78 Accepts]: Start accepts. Automaton has 7308 states and 12609 transitions. Word has length 160 [2022-07-12 06:04:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:34,984 INFO L495 AbstractCegarLoop]: Abstraction has 7308 states and 12609 transitions. [2022-07-12 06:04:34,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7308 states and 12609 transitions. [2022-07-12 06:04:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 06:04:35,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:35,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:35,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 06:04:35,012 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:35,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash 167082539, now seen corresponding path program 1 times [2022-07-12 06:04:35,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:35,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965841085] [2022-07-12 06:04:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 06:04:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:04:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 06:04:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:04:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:04:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 06:04:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 06:04:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:04:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 06:04:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:35,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:35,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965841085] [2022-07-12 06:04:35,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965841085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:35,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:35,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:35,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086538670] [2022-07-12 06:04:35,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:35,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:35,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:35,170 INFO L87 Difference]: Start difference. First operand 7308 states and 12609 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:37,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:37,217 INFO L93 Difference]: Finished difference Result 18633 states and 32682 transitions. [2022-07-12 06:04:37,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:37,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2022-07-12 06:04:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:37,265 INFO L225 Difference]: With dead ends: 18633 [2022-07-12 06:04:37,266 INFO L226 Difference]: Without dead ends: 12464 [2022-07-12 06:04:37,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:37,286 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 1410 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:37,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1499 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 06:04:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12464 states. [2022-07-12 06:04:37,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12464 to 12287. [2022-07-12 06:04:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12287 states, 10188 states have (on average 1.657243816254417) internal successors, (16884), 10194 states have internal predecessors, (16884), 2071 states have call successors, (2071), 23 states have call predecessors, (2071), 27 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2022-07-12 06:04:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12287 states to 12287 states and 21221 transitions. [2022-07-12 06:04:37,935 INFO L78 Accepts]: Start accepts. Automaton has 12287 states and 21221 transitions. Word has length 142 [2022-07-12 06:04:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:37,936 INFO L495 AbstractCegarLoop]: Abstraction has 12287 states and 21221 transitions. [2022-07-12 06:04:37,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 12287 states and 21221 transitions. [2022-07-12 06:04:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-12 06:04:37,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:37,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:37,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 06:04:37,969 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:37,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:37,970 INFO L85 PathProgramCache]: Analyzing trace with hash 740908290, now seen corresponding path program 1 times [2022-07-12 06:04:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:37,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739600327] [2022-07-12 06:04:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:37,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 06:04:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 06:04:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 06:04:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:04:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:04:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:04:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:04:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:04:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 06:04:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 06:04:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 06:04:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 06:04:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:38,048 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 06:04:38,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:38,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739600327] [2022-07-12 06:04:38,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739600327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:38,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:38,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:38,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774523441] [2022-07-12 06:04:38,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:38,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:38,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:38,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:38,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:38,050 INFO L87 Difference]: Start difference. First operand 12287 states and 21221 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:40,048 INFO L93 Difference]: Finished difference Result 29591 states and 51647 transitions. [2022-07-12 06:04:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:40,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2022-07-12 06:04:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:40,125 INFO L225 Difference]: With dead ends: 29591 [2022-07-12 06:04:40,125 INFO L226 Difference]: Without dead ends: 19417 [2022-07-12 06:04:40,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:40,159 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1410 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:40,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1470 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:04:40,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19417 states. [2022-07-12 06:04:41,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19417 to 19240. [2022-07-12 06:04:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19240 states, 15938 states have (on average 1.632952691680261) internal successors, (26026), 15944 states have internal predecessors, (26026), 3274 states have call successors, (3274), 23 states have call predecessors, (3274), 27 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2022-07-12 06:04:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19240 states to 19240 states and 32913 transitions. [2022-07-12 06:04:41,315 INFO L78 Accepts]: Start accepts. Automaton has 19240 states and 32913 transitions. Word has length 162 [2022-07-12 06:04:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:41,316 INFO L495 AbstractCegarLoop]: Abstraction has 19240 states and 32913 transitions. [2022-07-12 06:04:41,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 19240 states and 32913 transitions. [2022-07-12 06:04:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-12 06:04:41,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:41,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:41,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 06:04:41,353 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:41,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1049714028, now seen corresponding path program 1 times [2022-07-12 06:04:41,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:41,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778566090] [2022-07-12 06:04:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:41,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 06:04:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:04:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 06:04:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:04:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:04:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:04:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:04:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 06:04:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 06:04:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:41,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:41,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778566090] [2022-07-12 06:04:41,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778566090] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:41,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:41,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:41,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635479375] [2022-07-12 06:04:41,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:41,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:41,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:41,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:41,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:41,458 INFO L87 Difference]: Start difference. First operand 19240 states and 32913 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:44,217 INFO L93 Difference]: Finished difference Result 51023 states and 88767 transitions. [2022-07-12 06:04:44,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:44,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2022-07-12 06:04:44,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:44,374 INFO L225 Difference]: With dead ends: 51023 [2022-07-12 06:04:44,374 INFO L226 Difference]: Without dead ends: 34538 [2022-07-12 06:04:44,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:44,432 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 1406 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:44,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 1498 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 06:04:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34538 states. [2022-07-12 06:04:46,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34538 to 34361. [2022-07-12 06:04:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34361 states, 28609 states have (on average 1.6298717186899228) internal successors, (46629), 28615 states have internal predecessors, (46629), 5724 states have call successors, (5724), 23 states have call predecessors, (5724), 27 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2022-07-12 06:04:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34361 states to 34361 states and 58690 transitions. [2022-07-12 06:04:46,403 INFO L78 Accepts]: Start accepts. Automaton has 34361 states and 58690 transitions. Word has length 144 [2022-07-12 06:04:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:46,404 INFO L495 AbstractCegarLoop]: Abstraction has 34361 states and 58690 transitions. [2022-07-12 06:04:46,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:46,404 INFO L276 IsEmpty]: Start isEmpty. Operand 34361 states and 58690 transitions. [2022-07-12 06:04:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 06:04:46,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:46,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:46,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 06:04:46,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:46,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1454676440, now seen corresponding path program 1 times [2022-07-12 06:04:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:46,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364656470] [2022-07-12 06:04:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 06:04:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 06:04:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 06:04:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:04:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:04:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 06:04:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:04:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 06:04:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 06:04:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 06:04:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 06:04:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 06:04:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-12 06:04:46,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:46,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364656470] [2022-07-12 06:04:46,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364656470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:46,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:46,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:46,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28010623] [2022-07-12 06:04:46,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:46,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:46,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:46,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:46,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:46,785 INFO L87 Difference]: Start difference. First operand 34361 states and 58690 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:50,445 INFO L93 Difference]: Finished difference Result 93895 states and 162561 transitions. [2022-07-12 06:04:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:50,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2022-07-12 06:04:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:50,698 INFO L225 Difference]: With dead ends: 93895 [2022-07-12 06:04:50,698 INFO L226 Difference]: Without dead ends: 63205 [2022-07-12 06:04:50,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:50,789 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1404 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:50,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 1504 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 06:04:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63205 states. [2022-07-12 06:04:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63205 to 63028. [2022-07-12 06:04:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63028 states, 52763 states have (on average 1.6257604760912003) internal successors, (85780), 52769 states have internal predecessors, (85780), 10237 states have call successors, (10237), 23 states have call predecessors, (10237), 27 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2022-07-12 06:04:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63028 states to 63028 states and 107399 transitions. [2022-07-12 06:04:54,015 INFO L78 Accepts]: Start accepts. Automaton has 63028 states and 107399 transitions. Word has length 164 [2022-07-12 06:04:54,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:04:54,016 INFO L495 AbstractCegarLoop]: Abstraction has 63028 states and 107399 transitions. [2022-07-12 06:04:54,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 06:04:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 63028 states and 107399 transitions. [2022-07-12 06:04:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-12 06:04:54,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:04:54,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:04:54,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 06:04:54,084 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:04:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:04:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1629987212, now seen corresponding path program 1 times [2022-07-12 06:04:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:04:54,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924408073] [2022-07-12 06:04:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:04:54,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:04:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:04:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:04:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:04:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:04:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:04:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:04:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 06:04:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 06:04:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 06:04:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:04:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:04:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:04:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 06:04:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 06:04:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 06:04:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:04:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:04:54,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:04:54,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924408073] [2022-07-12 06:04:54,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924408073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:04:54,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:04:54,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:04:54,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999531583] [2022-07-12 06:04:54,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:04:54,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:04:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:04:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:04:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:04:54,179 INFO L87 Difference]: Start difference. First operand 63028 states and 107399 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:04:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:04:59,308 INFO L93 Difference]: Finished difference Result 118271 states and 205195 transitions. [2022-07-12 06:04:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:04:59,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-07-12 06:04:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:04:59,826 INFO L225 Difference]: With dead ends: 118271 [2022-07-12 06:04:59,826 INFO L226 Difference]: Without dead ends: 118078 [2022-07-12 06:04:59,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:04:59,882 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 1405 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:04:59,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 1497 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 06:04:59,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118078 states. [2022-07-12 06:05:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118078 to 117901. [2022-07-12 06:05:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117901 states, 99268 states have (on average 1.6205725913688198) internal successors, (160871), 99274 states have internal predecessors, (160871), 18605 states have call successors, (18605), 23 states have call predecessors, (18605), 27 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2022-07-12 06:05:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117901 states to 117901 states and 200272 transitions. [2022-07-12 06:05:05,853 INFO L78 Accepts]: Start accepts. Automaton has 117901 states and 200272 transitions. Word has length 146 [2022-07-12 06:05:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:05:05,854 INFO L495 AbstractCegarLoop]: Abstraction has 117901 states and 200272 transitions. [2022-07-12 06:05:05,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:05:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 117901 states and 200272 transitions. [2022-07-12 06:05:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-12 06:05:05,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:05:05,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:05:05,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 06:05:05,925 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:05:05,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:05:05,925 INFO L85 PathProgramCache]: Analyzing trace with hash 320007001, now seen corresponding path program 1 times [2022-07-12 06:05:05,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:05:05,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688564738] [2022-07-12 06:05:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:05:05,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:05:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:05:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:05:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:05:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:05:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:05:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:05:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:05:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 06:05:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:05:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:05:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:05:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 06:05:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 06:05:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 06:05:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 06:05:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:05:06,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:05:06,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688564738] [2022-07-12 06:05:06,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688564738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:05:06,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:05:06,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 06:05:06,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099660571] [2022-07-12 06:05:06,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:05:06,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 06:05:06,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:05:06,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 06:05:06,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:05:06,059 INFO L87 Difference]: Start difference. First operand 117901 states and 200272 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:05:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:05:12,169 INFO L93 Difference]: Finished difference Result 118255 states and 204091 transitions. [2022-07-12 06:05:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 06:05:12,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2022-07-12 06:05:12,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:05:12,641 INFO L225 Difference]: With dead ends: 118255 [2022-07-12 06:05:12,641 INFO L226 Difference]: Without dead ends: 118070 [2022-07-12 06:05:12,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2022-07-12 06:05:12,711 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 1647 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 3380 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 4003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 3380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:05:12,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 1871 Invalid, 4003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 3380 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 06:05:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118070 states. [2022-07-12 06:05:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118070 to 117901. [2022-07-12 06:05:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117901 states, 99268 states have (on average 1.6205625176290446) internal successors, (160870), 99274 states have internal predecessors, (160870), 18605 states have call successors, (18605), 23 states have call predecessors, (18605), 27 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2022-07-12 06:05:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117901 states to 117901 states and 200271 transitions. [2022-07-12 06:05:20,071 INFO L78 Accepts]: Start accepts. Automaton has 117901 states and 200271 transitions. Word has length 147 [2022-07-12 06:05:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:05:20,071 INFO L495 AbstractCegarLoop]: Abstraction has 117901 states and 200271 transitions. [2022-07-12 06:05:20,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 06:05:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 117901 states and 200271 transitions. [2022-07-12 06:05:20,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-12 06:05:20,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:05:20,168 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:05:20,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 06:05:20,168 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:05:20,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:05:20,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1105014688, now seen corresponding path program 1 times [2022-07-12 06:05:20,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:05:20,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107153116] [2022-07-12 06:05:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:05:20,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:05:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:05:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:05:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:05:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:05:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:05:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:05:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:05:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 06:05:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:05:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:05:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:05:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 06:05:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 06:05:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 06:05:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:05:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 06:05:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:05:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:05:20,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:05:20,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107153116] [2022-07-12 06:05:20,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107153116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:05:20,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:05:20,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 06:05:20,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948643451] [2022-07-12 06:05:20,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:05:20,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 06:05:20,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:05:20,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 06:05:20,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:05:20,359 INFO L87 Difference]: Start difference. First operand 117901 states and 200271 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16)