./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc6bd9a8e81eed69bb1e052a3e58ea0f1400924f4533cb09f3cdffebd7dfcd4d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:01:16,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:01:16,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:01:16,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:01:16,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:01:16,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:01:16,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:01:16,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:01:16,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:01:16,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:01:16,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:01:16,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:01:16,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:01:16,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:01:16,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:01:16,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:01:16,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:01:16,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:01:16,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:01:16,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:01:16,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:01:16,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:01:16,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:01:16,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:01:16,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:01:16,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:01:16,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:01:16,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:01:16,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:01:16,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:01:16,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:01:16,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:01:16,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:01:16,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:01:16,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:01:16,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:01:16,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:01:16,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:01:16,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:01:16,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:01:16,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:01:16,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:01:16,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:01:16,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:01:16,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:01:16,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:01:16,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:01:16,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:01:16,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:01:16,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:01:16,474 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:01:16,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:01:16,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:01:16,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:01:16,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:01:16,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:01:16,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:01:16,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:01:16,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:01:16,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:01:16,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:01:16,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:01:16,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:01:16,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:01:16,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6bd9a8e81eed69bb1e052a3e58ea0f1400924f4533cb09f3cdffebd7dfcd4d [2021-12-17 15:01:16,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:01:16,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:01:16,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:01:16,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:01:16,703 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:01:16,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2021-12-17 15:01:16,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73a80678e/1b18a8023dea4f7f971c7056434f0117/FLAG96029996d [2021-12-17 15:01:17,240 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:01:17,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c [2021-12-17 15:01:17,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73a80678e/1b18a8023dea4f7f971c7056434f0117/FLAG96029996d [2021-12-17 15:01:17,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73a80678e/1b18a8023dea4f7f971c7056434f0117 [2021-12-17 15:01:17,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:01:17,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:01:17,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:01:17,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:01:17,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:01:17,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5b03a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17, skipping insertion in model container [2021-12-17 15:01:17,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:01:17,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:01:17,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c[48205,48218] [2021-12-17 15:01:17,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:01:17,746 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:01:17,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product17.cil.c[48205,48218] [2021-12-17 15:01:17,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:01:17,874 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:01:17,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17 WrapperNode [2021-12-17 15:01:17,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:01:17,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:01:17,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:01:17,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:01:17,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,945 INFO L137 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 914 [2021-12-17 15:01:17,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:01:17,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:01:17,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:01:17,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:01:17,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:17,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:18,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:01:18,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:01:18,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:01:18,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:01:18,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (1/1) ... [2021-12-17 15:01:18,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:01:18,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:18,057 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) [2021-12-17 15:01:18,078 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 [2021-12-17 15:01:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 15:01:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 15:01:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 15:01:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 15:01:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2021-12-17 15:01:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2021-12-17 15:01:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 15:01:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 15:01:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 15:01:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 15:01:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 15:01:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 15:01:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 15:01:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 15:01:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 15:01:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 15:01:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 15:01:18,094 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 15:01:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 15:01:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 15:01:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 15:01:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 15:01:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 15:01:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:01:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 15:01:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 15:01:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 15:01:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 15:01:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 15:01:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 15:01:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 15:01:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 15:01:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 15:01:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 15:01:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 15:01:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 15:01:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 15:01:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 15:01:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 15:01:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 15:01:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:01:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 15:01:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 15:01:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 15:01:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 15:01:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:01:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:01:18,307 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:01:18,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:01:18,830 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:01:18,842 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:01:18,842 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 15:01:18,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:01:18 BoogieIcfgContainer [2021-12-17 15:01:18,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:01:18,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:01:18,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:01:18,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:01:18,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:01:17" (1/3) ... [2021-12-17 15:01:18,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db2da3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:01:18, skipping insertion in model container [2021-12-17 15:01:18,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:01:17" (2/3) ... [2021-12-17 15:01:18,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db2da3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:01:18, skipping insertion in model container [2021-12-17 15:01:18,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:01:18" (3/3) ... [2021-12-17 15:01:18,853 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec7_product17.cil.c [2021-12-17 15:01:18,856 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:01:18,857 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:01:18,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:01:18,894 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:01:18,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:01:18,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 345 states, 274 states have (on average 1.5875912408759123) internal successors, (435), 277 states have internal predecessors, (435), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2021-12-17 15:01:18,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-17 15:01:18,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:18,943 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:18,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:18,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash -299076794, now seen corresponding path program 1 times [2021-12-17 15:01:18,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:18,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912351694] [2021-12-17 15:01:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:18,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:01:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:01:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:01:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 15:01:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 15:01:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:01:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:01:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:01:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:01:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:01:19,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:19,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912351694] [2021-12-17 15:01:19,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912351694] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031957869] [2021-12-17 15:01:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:19,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:19,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:19,392 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) [2021-12-17 15:01:19,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:01:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:19,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 15:01:19,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:01:19,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:01:19,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031957869] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:19,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:01:19,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 15:01:19,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722768406] [2021-12-17 15:01:19,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:19,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:01:19,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:19,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:01:19,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:01:19,796 INFO L87 Difference]: Start difference. First operand has 345 states, 274 states have (on average 1.5875912408759123) internal successors, (435), 277 states have internal predecessors, (435), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:19,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:19,853 INFO L93 Difference]: Finished difference Result 502 states and 760 transitions. [2021-12-17 15:01:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:01:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2021-12-17 15:01:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:19,873 INFO L225 Difference]: With dead ends: 502 [2021-12-17 15:01:19,874 INFO L226 Difference]: Without dead ends: 338 [2021-12-17 15:01:19,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:01:19,883 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:19,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:01:19,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-12-17 15:01:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2021-12-17 15:01:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 268 states have (on average 1.5820895522388059) internal successors, (424), 270 states have internal predecessors, (424), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-17 15:01:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions. [2021-12-17 15:01:19,957 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 95 [2021-12-17 15:01:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:19,959 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 519 transitions. [2021-12-17 15:01:19,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions. [2021-12-17 15:01:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-17 15:01:19,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:19,965 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:19,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:01:20,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 15:01:20,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash 150434243, now seen corresponding path program 1 times [2021-12-17 15:01:20,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:20,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498255835] [2021-12-17 15:01:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:20,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:01:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:01:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:01:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 15:01:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 15:01:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:01:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:01:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:01:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:01:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:01:20,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:20,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498255835] [2021-12-17 15:01:20,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498255835] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:20,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47884207] [2021-12-17 15:01:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:20,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:20,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:20,312 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) [2021-12-17 15:01:20,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:01:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 15:01:20,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:01:20,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:01:20,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47884207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:20,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:01:20,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:01:20,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079521400] [2021-12-17 15:01:20,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:20,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:01:20,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:20,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:01:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:01:20,669 INFO L87 Difference]: Start difference. First operand 338 states and 519 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:20,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:20,689 INFO L93 Difference]: Finished difference Result 492 states and 738 transitions. [2021-12-17 15:01:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:01:20,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2021-12-17 15:01:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:20,693 INFO L225 Difference]: With dead ends: 492 [2021-12-17 15:01:20,693 INFO L226 Difference]: Without dead ends: 341 [2021-12-17 15:01:20,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:01:20,695 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:20,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1032 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:01:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-12-17 15:01:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 340. [2021-12-17 15:01:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 270 states have (on average 1.5777777777777777) internal successors, (426), 272 states have internal predecessors, (426), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-17 15:01:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 521 transitions. [2021-12-17 15:01:20,717 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 521 transitions. Word has length 96 [2021-12-17 15:01:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:20,718 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 521 transitions. [2021-12-17 15:01:20,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 521 transitions. [2021-12-17 15:01:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-17 15:01:20,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:20,720 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:20,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:01:20,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 15:01:20,936 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash 765324620, now seen corresponding path program 1 times [2021-12-17 15:01:20,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:20,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058045768] [2021-12-17 15:01:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:20,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:01:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:01:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:01:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-17 15:01:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:01:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:01:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:01:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:01:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:01:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:01:21,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:21,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058045768] [2021-12-17 15:01:21,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058045768] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:21,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908132487] [2021-12-17 15:01:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:21,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:21,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:21,069 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) [2021-12-17 15:01:21,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:01:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:01:21,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:21,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:01:21,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:01:21,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908132487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:21,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:01:21,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:01:21,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045319322] [2021-12-17 15:01:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:21,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:01:21,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:21,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:01:21,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:01:21,372 INFO L87 Difference]: Start difference. First operand 340 states and 521 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:21,409 INFO L93 Difference]: Finished difference Result 723 states and 1126 transitions. [2021-12-17 15:01:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:01:21,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2021-12-17 15:01:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:21,412 INFO L225 Difference]: With dead ends: 723 [2021-12-17 15:01:21,412 INFO L226 Difference]: Without dead ends: 410 [2021-12-17 15:01:21,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:01:21,414 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 126 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:21,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1011 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:01:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-12-17 15:01:21,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 402. [2021-12-17 15:01:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 318 states have (on average 1.5943396226415094) internal successors, (507), 320 states have internal predecessors, (507), 62 states have call successors, (62), 21 states have call predecessors, (62), 21 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-17 15:01:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 630 transitions. [2021-12-17 15:01:21,426 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 630 transitions. Word has length 102 [2021-12-17 15:01:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:21,427 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 630 transitions. [2021-12-17 15:01:21,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 630 transitions. [2021-12-17 15:01:21,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-17 15:01:21,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:21,429 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:21,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:01:21,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:21,647 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:21,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:21,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1123916787, now seen corresponding path program 1 times [2021-12-17 15:01:21,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:21,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952670315] [2021-12-17 15:01:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:21,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:01:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:01:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:01:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 15:01:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:01:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:01:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:01:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:01:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:01:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:01:21,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:21,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952670315] [2021-12-17 15:01:21,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952670315] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:21,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675912121] [2021-12-17 15:01:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:21,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:21,764 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) [2021-12-17 15:01:21,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 15:01:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:21,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:01:21,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:22,121 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:01:22,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:01:22,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675912121] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:22,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:01:22,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 15:01:22,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655624705] [2021-12-17 15:01:22,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:22,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:01:22,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:01:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:01:22,126 INFO L87 Difference]: Start difference. First operand 402 states and 630 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:22,189 INFO L93 Difference]: Finished difference Result 795 states and 1250 transitions. [2021-12-17 15:01:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:01:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2021-12-17 15:01:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:22,192 INFO L225 Difference]: With dead ends: 795 [2021-12-17 15:01:22,192 INFO L226 Difference]: Without dead ends: 404 [2021-12-17 15:01:22,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:22,196 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 144 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:22,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1874 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:01:22,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-12-17 15:01:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2021-12-17 15:01:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 319 states have (on average 1.5924764890282133) internal successors, (508), 322 states have internal predecessors, (508), 62 states have call successors, (62), 21 states have call predecessors, (62), 22 states have return successors, (63), 60 states have call predecessors, (63), 61 states have call successors, (63) [2021-12-17 15:01:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 633 transitions. [2021-12-17 15:01:22,223 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 633 transitions. Word has length 103 [2021-12-17 15:01:22,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:22,224 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 633 transitions. [2021-12-17 15:01:22,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 633 transitions. [2021-12-17 15:01:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-17 15:01:22,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:22,226 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:01:22,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-17 15:01:22,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:22,437 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1244565440, now seen corresponding path program 1 times [2021-12-17 15:01:22,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:22,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002639729] [2021-12-17 15:01:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:22,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 15:01:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 15:01:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-17 15:01:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:01:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:01:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:01:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:01:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:01:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:01:22,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:22,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002639729] [2021-12-17 15:01:22,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002639729] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:22,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909798825] [2021-12-17 15:01:22,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:22,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:22,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:22,569 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) [2021-12-17 15:01:22,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 15:01:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:22,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 15:01:22,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:01:22,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:01:22,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909798825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:22,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:01:22,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 15:01:22,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968942910] [2021-12-17 15:01:22,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:22,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:01:22,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:22,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:01:22,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:01:22,932 INFO L87 Difference]: Start difference. First operand 404 states and 633 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:22,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:22,982 INFO L93 Difference]: Finished difference Result 797 states and 1255 transitions. [2021-12-17 15:01:22,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:01:22,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2021-12-17 15:01:22,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:22,984 INFO L225 Difference]: With dead ends: 797 [2021-12-17 15:01:22,985 INFO L226 Difference]: Without dead ends: 406 [2021-12-17 15:01:22,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:01:22,986 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 143 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:22,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1863 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:01:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2021-12-17 15:01:22,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2021-12-17 15:01:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 320 states have (on average 1.590625) internal successors, (509), 324 states have internal predecessors, (509), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2021-12-17 15:01:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2021-12-17 15:01:23,000 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 104 [2021-12-17 15:01:23,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:23,000 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2021-12-17 15:01:23,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:23,000 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2021-12-17 15:01:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-17 15:01:23,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:23,002 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:23,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 15:01:23,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:23,221 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:23,222 INFO L85 PathProgramCache]: Analyzing trace with hash 904075134, now seen corresponding path program 1 times [2021-12-17 15:01:23,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:23,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718767430] [2021-12-17 15:01:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:23,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:01:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:01:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:01:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:01:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:01:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:01:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:01:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:01:23,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:23,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718767430] [2021-12-17 15:01:23,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718767430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:23,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:23,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:01:23,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513558948] [2021-12-17 15:01:23,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:23,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:01:23,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:23,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:01:23,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:01:23,325 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:24,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:24,492 INFO L93 Difference]: Finished difference Result 881 states and 1407 transitions. [2021-12-17 15:01:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:01:24,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2021-12-17 15:01:24,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:24,496 INFO L225 Difference]: With dead ends: 881 [2021-12-17 15:01:24,496 INFO L226 Difference]: Without dead ends: 498 [2021-12-17 15:01:24,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:01:24,498 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1256 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:24,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 1690 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:01:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-12-17 15:01:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 406. [2021-12-17 15:01:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 320 states have (on average 1.590625) internal successors, (509), 324 states have internal predecessors, (509), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (67), 60 states have call predecessors, (67), 61 states have call successors, (67) [2021-12-17 15:01:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 638 transitions. [2021-12-17 15:01:24,526 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 638 transitions. Word has length 105 [2021-12-17 15:01:24,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:24,527 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 638 transitions. [2021-12-17 15:01:24,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 638 transitions. [2021-12-17 15:01:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 15:01:24,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:24,529 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:24,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:01:24,529 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:24,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:24,530 INFO L85 PathProgramCache]: Analyzing trace with hash -232989553, now seen corresponding path program 2 times [2021-12-17 15:01:24,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:24,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046146062] [2021-12-17 15:01:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:24,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:01:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:01:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:01:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:01:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:01:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:01:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:01:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:01:24,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:24,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046146062] [2021-12-17 15:01:24,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046146062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:24,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:24,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:01:24,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068078058] [2021-12-17 15:01:24,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:24,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:01:24,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:01:24,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:01:24,621 INFO L87 Difference]: Start difference. First operand 406 states and 638 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:25,776 INFO L93 Difference]: Finished difference Result 883 states and 1410 transitions. [2021-12-17 15:01:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:01:25,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2021-12-17 15:01:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:25,779 INFO L225 Difference]: With dead ends: 883 [2021-12-17 15:01:25,779 INFO L226 Difference]: Without dead ends: 500 [2021-12-17 15:01:25,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:01:25,780 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1249 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:25,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1270 Valid, 1689 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:01:25,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-12-17 15:01:25,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 408. [2021-12-17 15:01:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 321 states have (on average 1.588785046728972) internal successors, (510), 326 states have internal predecessors, (510), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (69), 60 states have call predecessors, (69), 61 states have call successors, (69) [2021-12-17 15:01:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 641 transitions. [2021-12-17 15:01:25,798 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 641 transitions. Word has length 106 [2021-12-17 15:01:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:25,798 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 641 transitions. [2021-12-17 15:01:25,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-17 15:01:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 641 transitions. [2021-12-17 15:01:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 15:01:25,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:25,800 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:25,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:01:25,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 754334179, now seen corresponding path program 1 times [2021-12-17 15:01:25,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:25,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578163358] [2021-12-17 15:01:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:25,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:01:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:01:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:01:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:01:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:01:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:01:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:01:25,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:25,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578163358] [2021-12-17 15:01:25,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578163358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:25,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:25,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:01:25,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923722370] [2021-12-17 15:01:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:25,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:01:25,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:25,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:01:25,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:01:25,917 INFO L87 Difference]: Start difference. First operand 408 states and 641 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-17 15:01:27,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:27,524 INFO L93 Difference]: Finished difference Result 881 states and 1405 transitions. [2021-12-17 15:01:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:01:27,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 107 [2021-12-17 15:01:27,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:27,527 INFO L225 Difference]: With dead ends: 881 [2021-12-17 15:01:27,527 INFO L226 Difference]: Without dead ends: 500 [2021-12-17 15:01:27,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:01:27,529 INFO L933 BasicCegarLoop]: 558 mSDtfsCounter, 1378 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 3372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:27,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 2174 Invalid, 3372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 15:01:27,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-12-17 15:01:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 408. [2021-12-17 15:01:27,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 321 states have (on average 1.588785046728972) internal successors, (510), 326 states have internal predecessors, (510), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2021-12-17 15:01:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 640 transitions. [2021-12-17 15:01:27,544 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 640 transitions. Word has length 107 [2021-12-17 15:01:27,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:27,545 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 640 transitions. [2021-12-17 15:01:27,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-17 15:01:27,545 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 640 transitions. [2021-12-17 15:01:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 15:01:27,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:27,546 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:27,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:01:27,547 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:27,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:27,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1320832791, now seen corresponding path program 2 times [2021-12-17 15:01:27,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:27,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828474970] [2021-12-17 15:01:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:27,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:01:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:01:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:01:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:01:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:01:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:01:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:01:27,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:27,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828474970] [2021-12-17 15:01:27,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828474970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:27,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:27,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:01:27,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085055124] [2021-12-17 15:01:27,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:27,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:01:27,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:01:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:01:27,649 INFO L87 Difference]: Start difference. First operand 408 states and 640 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-17 15:01:29,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:29,320 INFO L93 Difference]: Finished difference Result 883 states and 1411 transitions. [2021-12-17 15:01:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:01:29,321 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 108 [2021-12-17 15:01:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:29,323 INFO L225 Difference]: With dead ends: 883 [2021-12-17 15:01:29,323 INFO L226 Difference]: Without dead ends: 502 [2021-12-17 15:01:29,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:01:29,325 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1374 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 2961 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 3396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:29,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1374 Valid, 2168 Invalid, 3396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2961 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 15:01:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-12-17 15:01:29,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 410. [2021-12-17 15:01:29,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 322 states have (on average 1.5869565217391304) internal successors, (511), 328 states have internal predecessors, (511), 62 states have call successors, (62), 21 states have call predecessors, (62), 25 states have return successors, (73), 60 states have call predecessors, (73), 61 states have call successors, (73) [2021-12-17 15:01:29,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 646 transitions. [2021-12-17 15:01:29,345 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 646 transitions. Word has length 108 [2021-12-17 15:01:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:29,346 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 646 transitions. [2021-12-17 15:01:29,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-17 15:01:29,346 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 646 transitions. [2021-12-17 15:01:29,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 15:01:29,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:29,348 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:29,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:01:29,348 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:29,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:29,348 INFO L85 PathProgramCache]: Analyzing trace with hash -365545368, now seen corresponding path program 1 times [2021-12-17 15:01:29,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:29,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282381110] [2021-12-17 15:01:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:29,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:01:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:01:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:01:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:01:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:01:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:01:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:29,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:29,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282381110] [2021-12-17 15:01:29,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282381110] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:01:29,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683223399] [2021-12-17 15:01:29,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:29,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:29,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:01:29,435 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) [2021-12-17 15:01:29,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 15:01:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:29,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:01:29,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:01:29,770 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:29,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:01:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:29,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683223399] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:01:29,941 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:01:29,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-17 15:01:29,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364582150] [2021-12-17 15:01:29,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:01:29,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 15:01:29,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 15:01:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:01:29,942 INFO L87 Difference]: Start difference. First operand 410 states and 646 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:31,371 INFO L93 Difference]: Finished difference Result 1070 states and 1780 transitions. [2021-12-17 15:01:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:01:31,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2021-12-17 15:01:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:31,377 INFO L225 Difference]: With dead ends: 1070 [2021-12-17 15:01:31,377 INFO L226 Difference]: Without dead ends: 919 [2021-12-17 15:01:31,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:01:31,379 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 1613 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:31,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1667 Valid, 2359 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:01:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-12-17 15:01:31,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 803. [2021-12-17 15:01:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 636 states have (on average 1.6415094339622642) internal successors, (1044), 642 states have internal predecessors, (1044), 141 states have call successors, (141), 21 states have call predecessors, (141), 25 states have return successors, (162), 139 states have call predecessors, (162), 140 states have call successors, (162) [2021-12-17 15:01:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1347 transitions. [2021-12-17 15:01:31,446 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1347 transitions. Word has length 109 [2021-12-17 15:01:31,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:31,446 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 1347 transitions. [2021-12-17 15:01:31,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-17 15:01:31,447 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1347 transitions. [2021-12-17 15:01:31,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 15:01:31,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:31,450 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:31,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 15:01:31,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:01:31,672 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:31,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1387538683, now seen corresponding path program 1 times [2021-12-17 15:01:31,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:31,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441961176] [2021-12-17 15:01:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:31,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:01:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:01:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:01:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:01:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:01:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:01:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:31,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:31,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441961176] [2021-12-17 15:01:31,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441961176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:31,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:31,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:31,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045020303] [2021-12-17 15:01:31,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:31,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:31,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:31,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:31,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:31,752 INFO L87 Difference]: Start difference. First operand 803 states and 1347 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:32,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:32,711 INFO L93 Difference]: Finished difference Result 2028 states and 3485 transitions. [2021-12-17 15:01:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:32,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2021-12-17 15:01:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:32,717 INFO L225 Difference]: With dead ends: 2028 [2021-12-17 15:01:32,718 INFO L226 Difference]: Without dead ends: 1293 [2021-12-17 15:01:32,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:32,721 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1250 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:32,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 1446 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2021-12-17 15:01:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1193. [2021-12-17 15:01:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 947 states have (on average 1.6515311510031678) internal successors, (1564), 953 states have internal predecessors, (1564), 220 states have call successors, (220), 21 states have call predecessors, (220), 25 states have return successors, (251), 218 states have call predecessors, (251), 219 states have call successors, (251) [2021-12-17 15:01:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 2035 transitions. [2021-12-17 15:01:32,766 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 2035 transitions. Word has length 115 [2021-12-17 15:01:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:32,767 INFO L470 AbstractCegarLoop]: Abstraction has 1193 states and 2035 transitions. [2021-12-17 15:01:32,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 2035 transitions. [2021-12-17 15:01:32,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 15:01:32,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:32,772 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:32,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:01:32,772 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:32,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:32,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1259187153, now seen corresponding path program 1 times [2021-12-17 15:01:32,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:32,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242094396] [2021-12-17 15:01:32,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:32,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:01:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:01:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:01:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:01:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:01:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:01:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:32,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:32,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242094396] [2021-12-17 15:01:32,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242094396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:32,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:32,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:32,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207827404] [2021-12-17 15:01:32,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:32,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:32,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:32,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:32,858 INFO L87 Difference]: Start difference. First operand 1193 states and 2035 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:33,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:33,807 INFO L93 Difference]: Finished difference Result 2977 states and 5159 transitions. [2021-12-17 15:01:33,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:33,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2021-12-17 15:01:33,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:33,816 INFO L225 Difference]: With dead ends: 2977 [2021-12-17 15:01:33,816 INFO L226 Difference]: Without dead ends: 1905 [2021-12-17 15:01:33,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:33,821 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 1248 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:33,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 1443 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2021-12-17 15:01:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1805. [2021-12-17 15:01:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1440 states have (on average 1.6576388888888889) internal successors, (2387), 1446 states have internal predecessors, (2387), 339 states have call successors, (339), 21 states have call predecessors, (339), 25 states have return successors, (370), 337 states have call predecessors, (370), 338 states have call successors, (370) [2021-12-17 15:01:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 3096 transitions. [2021-12-17 15:01:33,921 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 3096 transitions. Word has length 116 [2021-12-17 15:01:33,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:33,921 INFO L470 AbstractCegarLoop]: Abstraction has 1805 states and 3096 transitions. [2021-12-17 15:01:33,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 3096 transitions. [2021-12-17 15:01:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 15:01:33,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:33,929 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:33,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 15:01:33,929 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:33,930 INFO L85 PathProgramCache]: Analyzing trace with hash 245755623, now seen corresponding path program 1 times [2021-12-17 15:01:33,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:33,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468044183] [2021-12-17 15:01:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:33,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:33,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:01:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:01:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:01:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:01:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:01:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:01:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:34,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:34,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468044183] [2021-12-17 15:01:34,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468044183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:34,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:34,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:34,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377839096] [2021-12-17 15:01:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:34,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:34,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:34,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:34,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:34,021 INFO L87 Difference]: Start difference. First operand 1805 states and 3096 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:34,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:34,975 INFO L93 Difference]: Finished difference Result 4402 states and 7693 transitions. [2021-12-17 15:01:34,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:34,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2021-12-17 15:01:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:34,989 INFO L225 Difference]: With dead ends: 4402 [2021-12-17 15:01:34,989 INFO L226 Difference]: Without dead ends: 2843 [2021-12-17 15:01:34,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:34,995 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1243 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:34,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 1416 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:34,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2021-12-17 15:01:35,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2743. [2021-12-17 15:01:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2216 states have (on average 1.6629061371841156) internal successors, (3685), 2222 states have internal predecessors, (3685), 501 states have call successors, (501), 21 states have call predecessors, (501), 25 states have return successors, (548), 499 states have call predecessors, (548), 500 states have call successors, (548) [2021-12-17 15:01:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 4734 transitions. [2021-12-17 15:01:35,111 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 4734 transitions. Word has length 117 [2021-12-17 15:01:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:35,111 INFO L470 AbstractCegarLoop]: Abstraction has 2743 states and 4734 transitions. [2021-12-17 15:01:35,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 4734 transitions. [2021-12-17 15:01:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 15:01:35,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:35,120 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:35,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 15:01:35,120 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:35,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1189274254, now seen corresponding path program 1 times [2021-12-17 15:01:35,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:35,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27930237] [2021-12-17 15:01:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:35,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:01:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:01:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:01:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:01:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:01:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:01:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:35,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:35,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27930237] [2021-12-17 15:01:35,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27930237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:35,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:35,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:35,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571748965] [2021-12-17 15:01:35,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:35,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:35,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:35,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:35,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:35,188 INFO L87 Difference]: Start difference. First operand 2743 states and 4734 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:36,192 INFO L93 Difference]: Finished difference Result 6651 states and 11702 transitions. [2021-12-17 15:01:36,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:36,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-17 15:01:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:36,210 INFO L225 Difference]: With dead ends: 6651 [2021-12-17 15:01:36,210 INFO L226 Difference]: Without dead ends: 4358 [2021-12-17 15:01:36,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:36,217 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 1237 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:36,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 1414 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:36,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2021-12-17 15:01:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4258. [2021-12-17 15:01:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4258 states, 3486 states have (on average 1.6666666666666667) internal successors, (5810), 3492 states have internal predecessors, (5810), 746 states have call successors, (746), 21 states have call predecessors, (746), 25 states have return successors, (819), 744 states have call predecessors, (819), 745 states have call successors, (819) [2021-12-17 15:01:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 7375 transitions. [2021-12-17 15:01:36,381 INFO L78 Accepts]: Start accepts. Automaton has 4258 states and 7375 transitions. Word has length 118 [2021-12-17 15:01:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:36,381 INFO L470 AbstractCegarLoop]: Abstraction has 4258 states and 7375 transitions. [2021-12-17 15:01:36,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4258 states and 7375 transitions. [2021-12-17 15:01:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 15:01:36,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:36,390 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:36,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 15:01:36,391 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:36,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2146579299, now seen corresponding path program 1 times [2021-12-17 15:01:36,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:36,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8426654] [2021-12-17 15:01:36,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:36,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:01:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:01:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:01:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:01:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:01:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:01:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:36,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:36,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8426654] [2021-12-17 15:01:36,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8426654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:36,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:36,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:36,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642267150] [2021-12-17 15:01:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:36,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:36,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:36,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:36,503 INFO L87 Difference]: Start difference. First operand 4258 states and 7375 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:37,486 INFO L93 Difference]: Finished difference Result 10667 states and 18814 transitions. [2021-12-17 15:01:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:37,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-17 15:01:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:37,519 INFO L225 Difference]: With dead ends: 10667 [2021-12-17 15:01:37,519 INFO L226 Difference]: Without dead ends: 7091 [2021-12-17 15:01:37,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:37,531 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 1235 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:37,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 1479 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2021-12-17 15:01:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 6991. [2021-12-17 15:01:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 5726 states have (on average 1.6617184771219) internal successors, (9515), 5732 states have internal predecessors, (9515), 1239 states have call successors, (1239), 21 states have call predecessors, (1239), 25 states have return successors, (1356), 1237 states have call predecessors, (1356), 1238 states have call successors, (1356) [2021-12-17 15:01:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 12110 transitions. [2021-12-17 15:01:37,863 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 12110 transitions. Word has length 119 [2021-12-17 15:01:37,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:37,863 INFO L470 AbstractCegarLoop]: Abstraction has 6991 states and 12110 transitions. [2021-12-17 15:01:37,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 12110 transitions. [2021-12-17 15:01:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 15:01:37,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:37,876 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:37,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 15:01:37,878 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:37,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash -412052234, now seen corresponding path program 1 times [2021-12-17 15:01:37,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:37,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936164042] [2021-12-17 15:01:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:37,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:01:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:01:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:01:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:01:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:01:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:01:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:37,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:37,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936164042] [2021-12-17 15:01:37,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936164042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:37,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:37,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:37,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033947417] [2021-12-17 15:01:37,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:37,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:37,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:37,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:37,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:37,952 INFO L87 Difference]: Start difference. First operand 6991 states and 12110 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:39,098 INFO L93 Difference]: Finished difference Result 17807 states and 31386 transitions. [2021-12-17 15:01:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-17 15:01:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:39,144 INFO L225 Difference]: With dead ends: 17807 [2021-12-17 15:01:39,144 INFO L226 Difference]: Without dead ends: 11875 [2021-12-17 15:01:39,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:39,160 INFO L933 BasicCegarLoop]: 610 mSDtfsCounter, 1237 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:39,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 1454 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:39,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11875 states. [2021-12-17 15:01:39,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11875 to 11775. [2021-12-17 15:01:39,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11775 states, 9688 states have (on average 1.6611271676300579) internal successors, (16093), 9694 states have internal predecessors, (16093), 2061 states have call successors, (2061), 21 states have call predecessors, (2061), 25 states have return successors, (2256), 2059 states have call predecessors, (2256), 2060 states have call successors, (2256) [2021-12-17 15:01:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11775 states to 11775 states and 20410 transitions. [2021-12-17 15:01:39,649 INFO L78 Accepts]: Start accepts. Automaton has 11775 states and 20410 transitions. Word has length 120 [2021-12-17 15:01:39,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:39,650 INFO L470 AbstractCegarLoop]: Abstraction has 11775 states and 20410 transitions. [2021-12-17 15:01:39,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 11775 states and 20410 transitions. [2021-12-17 15:01:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 15:01:39,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:39,667 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:39,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 15:01:39,667 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:39,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:39,667 INFO L85 PathProgramCache]: Analyzing trace with hash -628071131, now seen corresponding path program 1 times [2021-12-17 15:01:39,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:39,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548583518] [2021-12-17 15:01:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:39,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:01:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:01:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:01:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:01:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:01:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:01:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:39,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:39,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548583518] [2021-12-17 15:01:39,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548583518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:39,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:39,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:39,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159344248] [2021-12-17 15:01:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:39,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:39,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:39,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:39,773 INFO L87 Difference]: Start difference. First operand 11775 states and 20410 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:41,148 INFO L93 Difference]: Finished difference Result 28240 states and 49511 transitions. [2021-12-17 15:01:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-17 15:01:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:41,205 INFO L225 Difference]: With dead ends: 28240 [2021-12-17 15:01:41,206 INFO L226 Difference]: Without dead ends: 18468 [2021-12-17 15:01:41,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:41,229 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 1231 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:41,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 1423 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18468 states. [2021-12-17 15:01:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18468 to 18368. [2021-12-17 15:01:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18368 states, 15078 states have (on average 1.6354291020029181) internal successors, (24659), 15084 states have internal predecessors, (24659), 3264 states have call successors, (3264), 21 states have call predecessors, (3264), 25 states have return successors, (3603), 3262 states have call predecessors, (3603), 3263 states have call successors, (3603) [2021-12-17 15:01:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18368 states to 18368 states and 31526 transitions. [2021-12-17 15:01:42,047 INFO L78 Accepts]: Start accepts. Automaton has 18368 states and 31526 transitions. Word has length 121 [2021-12-17 15:01:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:42,048 INFO L470 AbstractCegarLoop]: Abstraction has 18368 states and 31526 transitions. [2021-12-17 15:01:42,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 18368 states and 31526 transitions. [2021-12-17 15:01:42,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 15:01:42,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:42,066 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:42,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 15:01:42,067 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:42,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1967538743, now seen corresponding path program 1 times [2021-12-17 15:01:42,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:42,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783364476] [2021-12-17 15:01:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:42,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:01:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:01:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:01:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:01:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:01:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:01:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:42,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:42,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:42,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783364476] [2021-12-17 15:01:42,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783364476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:42,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:42,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:42,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667265888] [2021-12-17 15:01:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:42,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:42,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:42,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:42,150 INFO L87 Difference]: Start difference. First operand 18368 states and 31526 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:44,092 INFO L93 Difference]: Finished difference Result 48662 states and 85015 transitions. [2021-12-17 15:01:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-17 15:01:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:44,206 INFO L225 Difference]: With dead ends: 48662 [2021-12-17 15:01:44,207 INFO L226 Difference]: Without dead ends: 32904 [2021-12-17 15:01:44,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:44,238 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 1231 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:44,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 1424 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:44,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32904 states. [2021-12-17 15:01:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32904 to 32804. [2021-12-17 15:01:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32804 states, 27064 states have (on average 1.6319095477386936) internal successors, (44166), 27070 states have internal predecessors, (44166), 5714 states have call successors, (5714), 21 states have call predecessors, (5714), 25 states have return successors, (6327), 5712 states have call predecessors, (6327), 5713 states have call successors, (6327) [2021-12-17 15:01:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32804 states to 32804 states and 56207 transitions. [2021-12-17 15:01:45,551 INFO L78 Accepts]: Start accepts. Automaton has 32804 states and 56207 transitions. Word has length 122 [2021-12-17 15:01:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:45,551 INFO L470 AbstractCegarLoop]: Abstraction has 32804 states and 56207 transitions. [2021-12-17 15:01:45,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 32804 states and 56207 transitions. [2021-12-17 15:01:45,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 15:01:45,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:45,572 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:45,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 15:01:45,572 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1698809343, now seen corresponding path program 1 times [2021-12-17 15:01:45,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:45,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546809208] [2021-12-17 15:01:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:45,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:01:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:01:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:01:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:01:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:01:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:01:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:45,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:45,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546809208] [2021-12-17 15:01:45,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546809208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:45,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:45,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:45,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80154922] [2021-12-17 15:01:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:45,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:45,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:45,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:45,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:45,880 INFO L87 Difference]: Start difference. First operand 32804 states and 56207 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:48,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:48,406 INFO L93 Difference]: Finished difference Result 89559 states and 155649 transitions. [2021-12-17 15:01:48,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:48,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-17 15:01:48,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:48,647 INFO L225 Difference]: With dead ends: 89559 [2021-12-17 15:01:48,648 INFO L226 Difference]: Without dead ends: 60241 [2021-12-17 15:01:48,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:48,738 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1229 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:48,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 1419 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:48,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60241 states. [2021-12-17 15:01:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60241 to 60141. [2021-12-17 15:01:51,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60141 states, 49888 states have (on average 1.6274254329698525) internal successors, (81189), 49894 states have internal predecessors, (81189), 10227 states have call successors, (10227), 21 states have call predecessors, (10227), 25 states have return successors, (11372), 10225 states have call predecessors, (11372), 10226 states have call successors, (11372) [2021-12-17 15:01:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60141 states to 60141 states and 102788 transitions. [2021-12-17 15:01:51,493 INFO L78 Accepts]: Start accepts. Automaton has 60141 states and 102788 transitions. Word has length 123 [2021-12-17 15:01:51,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:01:51,493 INFO L470 AbstractCegarLoop]: Abstraction has 60141 states and 102788 transitions. [2021-12-17 15:01:51,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 60141 states and 102788 transitions. [2021-12-17 15:01:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 15:01:51,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:01:51,516 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:01:51,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 15:01:51,517 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:01:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:01:51,517 INFO L85 PathProgramCache]: Analyzing trace with hash 554856855, now seen corresponding path program 1 times [2021-12-17 15:01:51,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:01:51,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459861715] [2021-12-17 15:01:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:01:51,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:01:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:01:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:01:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:01:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:01:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:01:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:01:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:01:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:01:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:01:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:01:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:01:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:01:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:01:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:01:51,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:01:51,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459861715] [2021-12-17 15:01:51,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459861715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:01:51,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:01:51,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:01:51,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247987702] [2021-12-17 15:01:51,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:01:51,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:01:51,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:01:51,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:01:51,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:01:51,616 INFO L87 Difference]: Start difference. First operand 60141 states and 102788 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:01:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:01:55,520 INFO L93 Difference]: Finished difference Result 112650 states and 196227 transitions. [2021-12-17 15:01:55,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:01:55,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-17 15:01:55,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:01:55,960 INFO L225 Difference]: With dead ends: 112650 [2021-12-17 15:01:55,961 INFO L226 Difference]: Without dead ends: 112499 [2021-12-17 15:01:56,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:01:56,013 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1227 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:01:56,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 1418 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:01:56,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112499 states. [2021-12-17 15:02:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112499 to 112399. [2021-12-17 15:02:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112399 states, 93778 states have (on average 1.6218729339503934) internal successors, (152096), 93784 states have internal predecessors, (152096), 18595 states have call successors, (18595), 21 states have call predecessors, (18595), 25 states have return successors, (20786), 18593 states have call predecessors, (20786), 18594 states have call successors, (20786) [2021-12-17 15:02:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112399 states to 112399 states and 191477 transitions. [2021-12-17 15:02:01,264 INFO L78 Accepts]: Start accepts. Automaton has 112399 states and 191477 transitions. Word has length 124 [2021-12-17 15:02:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:02:01,264 INFO L470 AbstractCegarLoop]: Abstraction has 112399 states and 191477 transitions. [2021-12-17 15:02:01,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-17 15:02:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 112399 states and 191477 transitions. [2021-12-17 15:02:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 15:02:01,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:02:01,306 INFO L514 BasicCegarLoop]: 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] [2021-12-17 15:02:01,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 15:02:01,306 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:02:01,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:02:01,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1368831294, now seen corresponding path program 1 times [2021-12-17 15:02:01,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:02:01,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888242772] [2021-12-17 15:02:01,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:02:01,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:02:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:02:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:02:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:02:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:02:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:02:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:02:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:02:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:02:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:02:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:02:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:02:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:02:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:02:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:02:01,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:02:01,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888242772] [2021-12-17 15:02:01,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888242772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:02:01,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:02:01,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:02:01,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231768667] [2021-12-17 15:02:01,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:02:01,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:02:01,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:02:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:02:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:02:01,396 INFO L87 Difference]: Start difference. First operand 112399 states and 191477 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-17 15:02:05,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:02:05,365 INFO L93 Difference]: Finished difference Result 112489 states and 194907 transitions. [2021-12-17 15:02:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 15:02:05,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 125 [2021-12-17 15:02:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:02:05,366 INFO L225 Difference]: With dead ends: 112489 [2021-12-17 15:02:05,366 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:02:05,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-12-17 15:02:05,534 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1163 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 15:02:05,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 1877 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 15:02:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:02:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:02:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:02:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:02:05,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2021-12-17 15:02:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:02:05,547 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:02:05,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-17 15:02:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:02:05,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:02:05,549 INFO L764 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:02:05,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 15:02:05,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.