./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_spec11_product39.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 d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:44:33,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:44:33,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:44:33,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:44:33,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:44:33,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:44:33,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:44:33,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:44:33,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:44:33,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:44:33,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:44:33,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:44:33,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:44:33,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:44:33,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:44:33,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:44:33,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:44:33,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:44:33,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:44:33,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:44:33,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:44:33,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:44:33,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:44:33,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:44:33,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:44:33,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:44:33,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:44:33,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:44:33,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:44:33,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:44:33,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:44:33,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:44:33,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:44:33,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:44:33,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:44:33,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:44:33,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:44:33,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:44:33,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:44:33,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:44:33,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:44:33,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:44:33,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:44:33,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:44:33,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:44:33,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:44:33,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:44:33,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:44:33,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:44:33,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:44:33,940 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:44:33,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:44:33,941 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:44:33,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:44:33,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:44:33,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:44:33,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:44:33,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:44:33,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:44:33,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:44:33,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:44:33,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:44:33,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:44:33,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:44:33,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:44:33,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:44:33,943 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:44:33,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:44:33,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:44:33,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a [2021-12-28 00:44:34,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:44:34,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:44:34,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:44:34,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:44:34,231 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:44:34,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2021-12-28 00:44:34,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495512cea/cb25aa2c25dd4d449083dfea0dbc310b/FLAGfcc1b1663 [2021-12-28 00:44:34,738 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:44:34,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2021-12-28 00:44:34,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495512cea/cb25aa2c25dd4d449083dfea0dbc310b/FLAGfcc1b1663 [2021-12-28 00:44:34,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495512cea/cb25aa2c25dd4d449083dfea0dbc310b [2021-12-28 00:44:34,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:44:34,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:44:34,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:44:34,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:44:34,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:44:34,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:44:34" (1/1) ... [2021-12-28 00:44:34,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321cafb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:34, skipping insertion in model container [2021-12-28 00:44:34,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:44:34" (1/1) ... [2021-12-28 00:44:34,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:44:34,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:44:35,155 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_spec11_product39.cil.c[17959,17972] [2021-12-28 00:44:35,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:44:35,314 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:44:35,355 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_spec11_product39.cil.c[17959,17972] [2021-12-28 00:44:35,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:44:35,413 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:44:35,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35 WrapperNode [2021-12-28 00:44:35,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:44:35,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:44:35,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:44:35,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:44:35,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,497 INFO L137 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 47, calls inlined = 43, statements flattened = 813 [2021-12-28 00:44:35,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:44:35,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:44:35,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:44:35,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:44:35,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:44:35,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:44:35,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:44:35,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:44:35,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (1/1) ... [2021-12-28 00:44:35,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:44:35,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:35,597 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) [2021-12-28 00:44:35,629 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 [2021-12-28 00:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:44:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:44:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:44:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:44:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:44:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:44:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-28 00:44:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-28 00:44:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:44:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:44:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:44:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:44:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:44:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-28 00:44:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-28 00:44:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:44:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:44:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:44:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:44:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:44:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:44:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:44:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:44:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:44:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:44:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:44:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:44:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:44:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:44:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:44:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:44:35,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:44:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:44:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:44:35,654 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:44:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:44:35,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:44:35,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:44:35,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:44:35,837 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:44:35,838 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:44:36,329 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:44:36,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:44:36,339 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:44:36,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:44:36 BoogieIcfgContainer [2021-12-28 00:44:36,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:44:36,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:44:36,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:44:36,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:44:36,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:44:34" (1/3) ... [2021-12-28 00:44:36,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd8b831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:44:36, skipping insertion in model container [2021-12-28 00:44:36,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:44:35" (2/3) ... [2021-12-28 00:44:36,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd8b831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:44:36, skipping insertion in model container [2021-12-28 00:44:36,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:44:36" (3/3) ... [2021-12-28 00:44:36,345 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.c [2021-12-28 00:44:36,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:44:36,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:44:36,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:44:36,400 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 [2021-12-28 00:44:36,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:44:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 309 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 245 states have internal predecessors, (381), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-28 00:44:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-28 00:44:36,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:36,438 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] [2021-12-28 00:44:36,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1924070755, now seen corresponding path program 1 times [2021-12-28 00:44:36,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:36,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221691768] [2021-12-28 00:44:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:36,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:44:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:44:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:44:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:44:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:44:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:44:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:44:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:44:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:44:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:44:36,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:36,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221691768] [2021-12-28 00:44:36,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221691768] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:44:36,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070605975] [2021-12-28 00:44:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:36,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:44:36,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:36,833 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) [2021-12-28 00:44:36,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:44:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:44:37,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:44:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:44:37,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:44:37,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070605975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:37,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:44:37,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:44:37,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830236773] [2021-12-28 00:44:37,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:37,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:44:37,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:37,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:44:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:44:37,265 INFO L87 Difference]: Start difference. First operand has 309 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 245 states have internal predecessors, (381), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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) [2021-12-28 00:44:37,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:37,297 INFO L93 Difference]: Finished difference Result 425 states and 636 transitions. [2021-12-28 00:44:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:44:37,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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 [2021-12-28 00:44:37,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:37,307 INFO L225 Difference]: With dead ends: 425 [2021-12-28 00:44:37,307 INFO L226 Difference]: Without dead ends: 302 [2021-12-28 00:44:37,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:44:37,313 INFO L933 BasicCegarLoop]: 469 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, 469 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 [2021-12-28 00:44:37,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:44:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-12-28 00:44:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2021-12-28 00:44:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 236 states have (on average 1.5677966101694916) internal successors, (370), 238 states have internal predecessors, (370), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2021-12-28 00:44:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 461 transitions. [2021-12-28 00:44:37,380 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 461 transitions. Word has length 96 [2021-12-28 00:44:37,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:37,389 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 461 transitions. [2021-12-28 00:44:37,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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) [2021-12-28 00:44:37,390 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 461 transitions. [2021-12-28 00:44:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-28 00:44:37,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:37,394 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, 1] [2021-12-28 00:44:37,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 00:44:37,608 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 [2021-12-28 00:44:37,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:37,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:37,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1955701627, now seen corresponding path program 1 times [2021-12-28 00:44:37,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:37,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597654715] [2021-12-28 00:44:37,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:37,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:44:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:44:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:44:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:44:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:44:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:44:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:44:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:44:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:44:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:44:37,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:37,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597654715] [2021-12-28 00:44:37,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597654715] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:44:37,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256039726] [2021-12-28 00:44:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:37,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:44:37,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:37,800 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) [2021-12-28 00:44:37,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:44:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:44:38,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:44:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:44:38,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:44:38,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256039726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:38,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:44:38,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:44:38,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332035728] [2021-12-28 00:44:38,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:38,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:44:38,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:44:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:44:38,162 INFO L87 Difference]: Start difference. First operand 302 states and 461 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-12-28 00:44:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:38,183 INFO L93 Difference]: Finished difference Result 415 states and 614 transitions. [2021-12-28 00:44:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:44:38,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 97 [2021-12-28 00:44:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:38,186 INFO L225 Difference]: With dead ends: 415 [2021-12-28 00:44:38,186 INFO L226 Difference]: Without dead ends: 305 [2021-12-28 00:44:38,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:44:38,187 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 1 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 916 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 [2021-12-28 00:44:38,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 916 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:44:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-12-28 00:44:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2021-12-28 00:44:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 238 states have (on average 1.5630252100840336) internal successors, (372), 240 states have internal predecessors, (372), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2021-12-28 00:44:38,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 463 transitions. [2021-12-28 00:44:38,198 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 463 transitions. Word has length 97 [2021-12-28 00:44:38,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:38,198 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 463 transitions. [2021-12-28 00:44:38,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-12-28 00:44:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 463 transitions. [2021-12-28 00:44:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-28 00:44:38,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:38,201 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, 1, 1, 1] [2021-12-28 00:44:38,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:44:38,419 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 [2021-12-28 00:44:38,419 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:38,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:38,420 INFO L85 PathProgramCache]: Analyzing trace with hash 724838734, now seen corresponding path program 1 times [2021-12-28 00:44:38,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:38,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468990666] [2021-12-28 00:44:38,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:38,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:44:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:44:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:44:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:44:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:44:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:44:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:44:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:44:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:44:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:44:38,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:38,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468990666] [2021-12-28 00:44:38,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468990666] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:44:38,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904275994] [2021-12-28 00:44:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:38,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:44:38,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:38,549 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) [2021-12-28 00:44:38,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:44:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:38,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:44:38,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:44:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:44:38,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:44:38,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904275994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:38,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:44:38,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:44:38,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048773322] [2021-12-28 00:44:38,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:38,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:44:38,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:38,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:44:38,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:44:38,932 INFO L87 Difference]: Start difference. First operand 304 states and 463 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-12-28 00:44:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:38,968 INFO L93 Difference]: Finished difference Result 656 states and 1018 transitions. [2021-12-28 00:44:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:44:38,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 106 [2021-12-28 00:44:38,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:38,974 INFO L225 Difference]: With dead ends: 656 [2021-12-28 00:44:38,974 INFO L226 Difference]: Without dead ends: 379 [2021-12-28 00:44:38,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:44:38,978 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 134 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 906 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 [2021-12-28 00:44:38,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 906 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:44:38,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-12-28 00:44:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2021-12-28 00:44:38,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 291 states have (on average 1.5841924398625429) internal successors, (461), 293 states have internal predecessors, (461), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2021-12-28 00:44:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 580 transitions. [2021-12-28 00:44:39,005 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 580 transitions. Word has length 106 [2021-12-28 00:44:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:39,006 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 580 transitions. [2021-12-28 00:44:39,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-12-28 00:44:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 580 transitions. [2021-12-28 00:44:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-28 00:44:39,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:39,014 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, 1, 1, 1, 1] [2021-12-28 00:44:39,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:44:39,223 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 [2021-12-28 00:44:39,223 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:39,224 INFO L85 PathProgramCache]: Analyzing trace with hash 82985518, now seen corresponding path program 1 times [2021-12-28 00:44:39,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:39,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859453582] [2021-12-28 00:44:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:39,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:44:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:44:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:44:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:44:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:44:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:44:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:44:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:44:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:44:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:44:39,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859453582] [2021-12-28 00:44:39,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859453582] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:44:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442502878] [2021-12-28 00:44:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:39,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:44:39,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:39,330 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) [2021-12-28 00:44:39,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:44:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:39,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:44:39,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:44:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:44:39,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:44:39,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442502878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:39,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:44:39,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:44:39,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396653474] [2021-12-28 00:44:39,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:39,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:44:39,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:39,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:44:39,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:44:39,726 INFO L87 Difference]: Start difference. First operand 371 states and 580 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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) [2021-12-28 00:44:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:39,778 INFO L93 Difference]: Finished difference Result 733 states and 1150 transitions. [2021-12-28 00:44:39,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:44:39,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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 107 [2021-12-28 00:44:39,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:39,783 INFO L225 Difference]: With dead ends: 733 [2021-12-28 00:44:39,783 INFO L226 Difference]: Without dead ends: 373 [2021-12-28 00:44:39,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:44:39,785 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 152 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1634 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 [2021-12-28 00:44:39,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1634 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:44:39,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-12-28 00:44:39,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2021-12-28 00:44:39,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 292 states have (on average 1.582191780821918) internal successors, (462), 295 states have internal predecessors, (462), 60 states have call successors, (60), 19 states have call predecessors, (60), 20 states have return successors, (61), 58 states have call predecessors, (61), 59 states have call successors, (61) [2021-12-28 00:44:39,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 583 transitions. [2021-12-28 00:44:39,807 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 583 transitions. Word has length 107 [2021-12-28 00:44:39,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:39,807 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 583 transitions. [2021-12-28 00:44:39,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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) [2021-12-28 00:44:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 583 transitions. [2021-12-28 00:44:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:44:39,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:39,809 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, 1, 1, 1, 1] [2021-12-28 00:44:39,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:44:40,026 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 [2021-12-28 00:44:40,026 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:40,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash -201150452, now seen corresponding path program 1 times [2021-12-28 00:44:40,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:40,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365807475] [2021-12-28 00:44:40,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:40,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:44:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:44:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:44:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:44:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:44:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:44:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:44:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:44:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:44:40,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:40,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365807475] [2021-12-28 00:44:40,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365807475] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:44:40,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495980769] [2021-12-28 00:44:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:40,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:44:40,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:40,161 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) [2021-12-28 00:44:40,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:44:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:44:40,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:44:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:44:40,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:44:40,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495980769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:40,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:44:40,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:44:40,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537085733] [2021-12-28 00:44:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:40,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:44:40,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:40,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:44:40,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:44:40,521 INFO L87 Difference]: Start difference. First operand 373 states and 583 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2021-12-28 00:44:40,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:40,589 INFO L93 Difference]: Finished difference Result 735 states and 1155 transitions. [2021-12-28 00:44:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:44:40,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 108 [2021-12-28 00:44:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:40,593 INFO L225 Difference]: With dead ends: 735 [2021-12-28 00:44:40,593 INFO L226 Difference]: Without dead ends: 375 [2021-12-28 00:44:40,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:44:40,595 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 151 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1623 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 [2021-12-28 00:44:40,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1623 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:44:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-12-28 00:44:40,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2021-12-28 00:44:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 293 states have (on average 1.5802047781569966) internal successors, (463), 297 states have internal predecessors, (463), 60 states have call successors, (60), 19 states have call predecessors, (60), 21 states have return successors, (66), 58 states have call predecessors, (66), 59 states have call successors, (66) [2021-12-28 00:44:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 589 transitions. [2021-12-28 00:44:40,608 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 589 transitions. Word has length 108 [2021-12-28 00:44:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 589 transitions. [2021-12-28 00:44:40,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2021-12-28 00:44:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 589 transitions. [2021-12-28 00:44:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-28 00:44:40,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:40,611 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] [2021-12-28 00:44:40,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:44:40,822 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 [2021-12-28 00:44:40,822 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1014394431, now seen corresponding path program 1 times [2021-12-28 00:44:40,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:40,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705663272] [2021-12-28 00:44:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:40,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:44:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:44:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:44:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:44:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:44:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:44:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:44:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:44:40,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:40,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705663272] [2021-12-28 00:44:40,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705663272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:40,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:40,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:44:40,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224552545] [2021-12-28 00:44:40,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:40,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:44:40,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:44:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:44:40,912 INFO L87 Difference]: Start difference. First operand 375 states and 589 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-12-28 00:44:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:41,954 INFO L93 Difference]: Finished difference Result 812 states and 1299 transitions. [2021-12-28 00:44:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:44:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 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 109 [2021-12-28 00:44:41,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:41,957 INFO L225 Difference]: With dead ends: 812 [2021-12-28 00:44:41,957 INFO L226 Difference]: Without dead ends: 460 [2021-12-28 00:44:41,958 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 [2021-12-28 00:44:41,959 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1039 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:41,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 1469 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:44:41,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-12-28 00:44:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 375. [2021-12-28 00:44:41,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 293 states have (on average 1.5802047781569966) internal successors, (463), 297 states have internal predecessors, (463), 60 states have call successors, (60), 19 states have call predecessors, (60), 21 states have return successors, (65), 58 states have call predecessors, (65), 59 states have call successors, (65) [2021-12-28 00:44:41,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 588 transitions. [2021-12-28 00:44:41,981 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 588 transitions. Word has length 109 [2021-12-28 00:44:41,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:41,981 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 588 transitions. [2021-12-28 00:44:41,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-12-28 00:44:41,981 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 588 transitions. [2021-12-28 00:44:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:44:41,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:41,983 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, 1, 1] [2021-12-28 00:44:41,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:44:41,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:41,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:41,984 INFO L85 PathProgramCache]: Analyzing trace with hash 33364413, now seen corresponding path program 2 times [2021-12-28 00:44:41,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:41,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061973718] [2021-12-28 00:44:41,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:41,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:44:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:44:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:44:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:44:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:44:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:44:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:44:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:44:42,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:42,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061973718] [2021-12-28 00:44:42,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061973718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:42,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:42,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:44:42,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207973459] [2021-12-28 00:44:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:42,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:44:42,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:44:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:44:42,065 INFO L87 Difference]: Start difference. First operand 375 states and 588 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 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) [2021-12-28 00:44:43,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:43,078 INFO L93 Difference]: Finished difference Result 814 states and 1302 transitions. [2021-12-28 00:44:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:44:43,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 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 110 [2021-12-28 00:44:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:43,081 INFO L225 Difference]: With dead ends: 814 [2021-12-28 00:44:43,082 INFO L226 Difference]: Without dead ends: 462 [2021-12-28 00:44:43,083 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 [2021-12-28 00:44:43,083 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 1038 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:43,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 1468 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:44:43,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-12-28 00:44:43,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 377. [2021-12-28 00:44:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 294 states have (on average 1.5782312925170068) internal successors, (464), 299 states have internal predecessors, (464), 60 states have call successors, (60), 19 states have call predecessors, (60), 22 states have return successors, (67), 58 states have call predecessors, (67), 59 states have call successors, (67) [2021-12-28 00:44:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 591 transitions. [2021-12-28 00:44:43,110 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 591 transitions. Word has length 110 [2021-12-28 00:44:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:43,110 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 591 transitions. [2021-12-28 00:44:43,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 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) [2021-12-28 00:44:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 591 transitions. [2021-12-28 00:44:43,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:44:43,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:43,113 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, 1, 1] [2021-12-28 00:44:43,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:44:43,113 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:43,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:43,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1805555962, now seen corresponding path program 1 times [2021-12-28 00:44:43,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:43,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016715295] [2021-12-28 00:44:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:43,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:44:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:44:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:44:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:44:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:44:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:44:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:44:43,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:43,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016715295] [2021-12-28 00:44:43,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016715295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:43,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:43,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:44:43,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074428065] [2021-12-28 00:44:43,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:43,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:44:43,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:44:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:44:43,259 INFO L87 Difference]: Start difference. First operand 377 states and 591 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 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) [2021-12-28 00:44:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:44,722 INFO L93 Difference]: Finished difference Result 812 states and 1297 transitions. [2021-12-28 00:44:44,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:44:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 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 111 [2021-12-28 00:44:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:44,725 INFO L225 Difference]: With dead ends: 812 [2021-12-28 00:44:44,725 INFO L226 Difference]: Without dead ends: 462 [2021-12-28 00:44:44,726 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 [2021-12-28 00:44:44,727 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1190 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 3046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:44,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 1830 Invalid, 3046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 00:44:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-12-28 00:44:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 377. [2021-12-28 00:44:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 294 states have (on average 1.5782312925170068) internal successors, (464), 299 states have internal predecessors, (464), 60 states have call successors, (60), 19 states have call predecessors, (60), 22 states have return successors, (66), 58 states have call predecessors, (66), 59 states have call successors, (66) [2021-12-28 00:44:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 590 transitions. [2021-12-28 00:44:44,743 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 590 transitions. Word has length 111 [2021-12-28 00:44:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:44,743 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 590 transitions. [2021-12-28 00:44:44,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 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) [2021-12-28 00:44:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 590 transitions. [2021-12-28 00:44:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:44:44,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:44,745 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, 1, 1, 1, 1] [2021-12-28 00:44:44,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:44:44,745 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:44,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1028005593, now seen corresponding path program 2 times [2021-12-28 00:44:44,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:44,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991697356] [2021-12-28 00:44:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:44,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:44:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:44:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:44:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:44:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:44:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:44:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:44:44,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:44,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991697356] [2021-12-28 00:44:44,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991697356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:44,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:44,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:44:44,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365857919] [2021-12-28 00:44:44,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:44,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:44:44,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:44,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:44:44,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:44:44,859 INFO L87 Difference]: Start difference. First operand 377 states and 590 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 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) [2021-12-28 00:44:46,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:46,312 INFO L93 Difference]: Finished difference Result 814 states and 1303 transitions. [2021-12-28 00:44:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:44:46,312 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 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 112 [2021-12-28 00:44:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:46,315 INFO L225 Difference]: With dead ends: 814 [2021-12-28 00:44:46,315 INFO L226 Difference]: Without dead ends: 464 [2021-12-28 00:44:46,316 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 [2021-12-28 00:44:46,316 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 1216 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:46,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 1822 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-28 00:44:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-12-28 00:44:46,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 379. [2021-12-28 00:44:46,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 295 states have (on average 1.576271186440678) internal successors, (465), 301 states have internal predecessors, (465), 60 states have call successors, (60), 19 states have call predecessors, (60), 23 states have return successors, (71), 58 states have call predecessors, (71), 59 states have call successors, (71) [2021-12-28 00:44:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 596 transitions. [2021-12-28 00:44:46,333 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 596 transitions. Word has length 112 [2021-12-28 00:44:46,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:46,334 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 596 transitions. [2021-12-28 00:44:46,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 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) [2021-12-28 00:44:46,334 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 596 transitions. [2021-12-28 00:44:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 00:44:46,336 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:46,336 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, 1, 1, 1, 1] [2021-12-28 00:44:46,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:44:46,337 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:46,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:46,337 INFO L85 PathProgramCache]: Analyzing trace with hash 369653931, now seen corresponding path program 1 times [2021-12-28 00:44:46,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:46,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738282855] [2021-12-28 00:44:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:46,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:44:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:44:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:44:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:44:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:44:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:44:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-28 00:44:46,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:46,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738282855] [2021-12-28 00:44:46,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738282855] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:44:46,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130979016] [2021-12-28 00:44:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:46,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:44:46,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:44:46,453 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) [2021-12-28 00:44:46,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:44:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:46,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:44:46,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:44:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:46,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:44:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:46,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130979016] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:44:46,941 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:44:46,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-28 00:44:46,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094201969] [2021-12-28 00:44:46,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:44:46,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 00:44:46,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:46,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 00:44:46,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:44:46,945 INFO L87 Difference]: Start difference. First operand 379 states and 596 transitions. Second operand has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:44:49,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:49,359 INFO L93 Difference]: Finished difference Result 1673 states and 2861 transitions. [2021-12-28 00:44:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 00:44:49,360 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 113 [2021-12-28 00:44:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:49,366 INFO L225 Difference]: With dead ends: 1673 [2021-12-28 00:44:49,366 INFO L226 Difference]: Without dead ends: 1325 [2021-12-28 00:44:49,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-28 00:44:49,368 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 3257 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 3919 mSolverCounterSat, 1214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 5133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1214 IncrementalHoareTripleChecker+Valid, 3919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:49,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3259 Valid, 4070 Invalid, 5133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1214 Valid, 3919 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 00:44:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2021-12-28 00:44:49,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 797. [2021-12-28 00:44:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 634 states have (on average 1.6261829652996846) internal successors, (1031), 640 states have internal predecessors, (1031), 139 states have call successors, (139), 19 states have call predecessors, (139), 23 states have return successors, (160), 137 states have call predecessors, (160), 138 states have call successors, (160) [2021-12-28 00:44:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1330 transitions. [2021-12-28 00:44:49,416 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1330 transitions. Word has length 113 [2021-12-28 00:44:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:49,416 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1330 transitions. [2021-12-28 00:44:49,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:44:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1330 transitions. [2021-12-28 00:44:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-28 00:44:49,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:49,421 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] [2021-12-28 00:44:49,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:44:49,639 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 [2021-12-28 00:44:49,639 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1999129128, now seen corresponding path program 1 times [2021-12-28 00:44:49,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:49,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579735312] [2021-12-28 00:44:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:49,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:44:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:44:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:44:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:44:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:44:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:44:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:49,751 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:49,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:49,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579735312] [2021-12-28 00:44:49,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579735312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:49,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:49,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:49,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872391314] [2021-12-28 00:44:49,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:49,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:49,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:49,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:49,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:49,753 INFO L87 Difference]: Start difference. First operand 797 states and 1330 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) [2021-12-28 00:44:50,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:50,593 INFO L93 Difference]: Finished difference Result 1999 states and 3429 transitions. [2021-12-28 00:44:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:50,594 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 [2021-12-28 00:44:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:50,600 INFO L225 Difference]: With dead ends: 1999 [2021-12-28 00:44:50,600 INFO L226 Difference]: Without dead ends: 1280 [2021-12-28 00:44:50,603 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 [2021-12-28 00:44:50,603 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 1098 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:50,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 1271 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:44:50,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2021-12-28 00:44:50,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1187. [2021-12-28 00:44:50,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 945 states have (on average 1.6412698412698412) internal successors, (1551), 951 states have internal predecessors, (1551), 218 states have call successors, (218), 19 states have call predecessors, (218), 23 states have return successors, (249), 216 states have call predecessors, (249), 217 states have call successors, (249) [2021-12-28 00:44:50,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 2018 transitions. [2021-12-28 00:44:50,688 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 2018 transitions. Word has length 116 [2021-12-28 00:44:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:50,689 INFO L470 AbstractCegarLoop]: Abstraction has 1187 states and 2018 transitions. [2021-12-28 00:44:50,689 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) [2021-12-28 00:44:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 2018 transitions. [2021-12-28 00:44:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-28 00:44:50,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:50,693 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] [2021-12-28 00:44:50,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 00:44:50,694 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:50,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1684265169, now seen corresponding path program 1 times [2021-12-28 00:44:50,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:50,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710165321] [2021-12-28 00:44:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:50,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:44:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:44:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:44:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:44:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:44:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:44:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:50,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710165321] [2021-12-28 00:44:50,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710165321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:50,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:50,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:50,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167718553] [2021-12-28 00:44:50,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:50,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:50,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:50,785 INFO L87 Difference]: Start difference. First operand 1187 states and 2018 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) [2021-12-28 00:44:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:51,726 INFO L93 Difference]: Finished difference Result 2973 states and 5138 transitions. [2021-12-28 00:44:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:51,727 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 [2021-12-28 00:44:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:51,734 INFO L225 Difference]: With dead ends: 2973 [2021-12-28 00:44:51,735 INFO L226 Difference]: Without dead ends: 1917 [2021-12-28 00:44:51,738 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 [2021-12-28 00:44:51,739 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 1032 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:51,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1280 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:44:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2021-12-28 00:44:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1824. [2021-12-28 00:44:51,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1463 states have (on average 1.6466165413533835) internal successors, (2409), 1469 states have internal predecessors, (2409), 337 states have call successors, (337), 19 states have call predecessors, (337), 23 states have return successors, (368), 335 states have call predecessors, (368), 336 states have call successors, (368) [2021-12-28 00:44:51,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 3114 transitions. [2021-12-28 00:44:51,827 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 3114 transitions. Word has length 117 [2021-12-28 00:44:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:51,827 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 3114 transitions. [2021-12-28 00:44:51,827 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) [2021-12-28 00:44:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 3114 transitions. [2021-12-28 00:44:51,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 00:44:51,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:51,833 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] [2021-12-28 00:44:51,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:44:51,833 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:51,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:51,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1668055978, now seen corresponding path program 1 times [2021-12-28 00:44:51,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:51,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308422024] [2021-12-28 00:44:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:51,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:44:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:44:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:44:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:44:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:44:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:44:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:51,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:51,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308422024] [2021-12-28 00:44:51,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308422024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:51,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:51,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:51,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451879091] [2021-12-28 00:44:51,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:51,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:51,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:51,914 INFO L87 Difference]: Start difference. First operand 1824 states and 3114 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) [2021-12-28 00:44:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:52,845 INFO L93 Difference]: Finished difference Result 4453 states and 7749 transitions. [2021-12-28 00:44:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:52,846 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 [2021-12-28 00:44:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:52,856 INFO L225 Difference]: With dead ends: 4453 [2021-12-28 00:44:52,856 INFO L226 Difference]: Without dead ends: 2895 [2021-12-28 00:44:52,859 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 [2021-12-28 00:44:52,860 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 1006 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:52,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 1289 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:44:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-12-28 00:44:52,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2802. [2021-12-28 00:44:52,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2279 states have (on average 1.6511627906976745) internal successors, (3763), 2285 states have internal predecessors, (3763), 499 states have call successors, (499), 19 states have call predecessors, (499), 23 states have return successors, (546), 497 states have call predecessors, (546), 498 states have call successors, (546) [2021-12-28 00:44:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4808 transitions. [2021-12-28 00:44:52,973 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4808 transitions. Word has length 118 [2021-12-28 00:44:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:52,974 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 4808 transitions. [2021-12-28 00:44:52,974 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) [2021-12-28 00:44:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4808 transitions. [2021-12-28 00:44:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 00:44:52,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:52,981 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] [2021-12-28 00:44:52,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:44:52,981 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:52,981 INFO L85 PathProgramCache]: Analyzing trace with hash -75332658, now seen corresponding path program 1 times [2021-12-28 00:44:52,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:52,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648534039] [2021-12-28 00:44:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:52,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:44:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:44:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:44:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:44:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:44:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:44:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:53,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:53,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648534039] [2021-12-28 00:44:53,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648534039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:53,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:53,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:53,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454180263] [2021-12-28 00:44:53,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:53,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:53,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:53,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:53,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:53,052 INFO L87 Difference]: Start difference. First operand 2802 states and 4808 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) [2021-12-28 00:44:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:54,024 INFO L93 Difference]: Finished difference Result 6792 states and 11884 transitions. [2021-12-28 00:44:54,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:54,025 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 [2021-12-28 00:44:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:54,044 INFO L225 Difference]: With dead ends: 6792 [2021-12-28 00:44:54,045 INFO L226 Difference]: Without dead ends: 4475 [2021-12-28 00:44:54,051 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 [2021-12-28 00:44:54,052 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 1019 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:54,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 1281 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:44:54,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2021-12-28 00:44:54,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4382. [2021-12-28 00:44:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 3614 states have (on average 1.6543995572772552) internal successors, (5979), 3620 states have internal predecessors, (5979), 744 states have call successors, (744), 19 states have call predecessors, (744), 23 states have return successors, (817), 742 states have call predecessors, (817), 743 states have call successors, (817) [2021-12-28 00:44:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 7540 transitions. [2021-12-28 00:44:54,260 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 7540 transitions. Word has length 119 [2021-12-28 00:44:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:54,261 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 7540 transitions. [2021-12-28 00:44:54,261 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) [2021-12-28 00:44:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 7540 transitions. [2021-12-28 00:44:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 00:44:54,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:54,269 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] [2021-12-28 00:44:54,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:44:54,269 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1869318002, now seen corresponding path program 1 times [2021-12-28 00:44:54,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:54,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276116927] [2021-12-28 00:44:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:54,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:44:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:44:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:44:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:44:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:44:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:44:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:54,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:54,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276116927] [2021-12-28 00:44:54,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276116927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:54,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:54,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:54,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233231521] [2021-12-28 00:44:54,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:54,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:54,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:54,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:54,344 INFO L87 Difference]: Start difference. First operand 4382 states and 7540 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) [2021-12-28 00:44:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:55,373 INFO L93 Difference]: Finished difference Result 10963 states and 19213 transitions. [2021-12-28 00:44:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:55,374 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 [2021-12-28 00:44:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:55,403 INFO L225 Difference]: With dead ends: 10963 [2021-12-28 00:44:55,403 INFO L226 Difference]: Without dead ends: 7318 [2021-12-28 00:44:55,413 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 [2021-12-28 00:44:55,414 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 1057 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:55,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 1323 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:44:55,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7318 states. [2021-12-28 00:44:55,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7318 to 7225. [2021-12-28 00:44:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7225 states, 5964 states have (on average 1.6495640509725016) internal successors, (9838), 5970 states have internal predecessors, (9838), 1237 states have call successors, (1237), 19 states have call predecessors, (1237), 23 states have return successors, (1354), 1235 states have call predecessors, (1354), 1236 states have call successors, (1354) [2021-12-28 00:44:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7225 states to 7225 states and 12429 transitions. [2021-12-28 00:44:55,794 INFO L78 Accepts]: Start accepts. Automaton has 7225 states and 12429 transitions. Word has length 120 [2021-12-28 00:44:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:55,794 INFO L470 AbstractCegarLoop]: Abstraction has 7225 states and 12429 transitions. [2021-12-28 00:44:55,795 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) [2021-12-28 00:44:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7225 states and 12429 transitions. [2021-12-28 00:44:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 00:44:55,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:55,807 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] [2021-12-28 00:44:55,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:44:55,807 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:55,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1071149334, now seen corresponding path program 1 times [2021-12-28 00:44:55,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:55,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504467814] [2021-12-28 00:44:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:55,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:44:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:44:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:44:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:44:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:44:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:44:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:55,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:55,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504467814] [2021-12-28 00:44:55,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504467814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:55,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:55,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:55,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754922080] [2021-12-28 00:44:55,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:55,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:55,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:55,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:55,878 INFO L87 Difference]: Start difference. First operand 7225 states and 12429 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) [2021-12-28 00:44:57,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:57,085 INFO L93 Difference]: Finished difference Result 18383 states and 32177 transitions. [2021-12-28 00:44:57,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:57,086 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 [2021-12-28 00:44:57,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:57,121 INFO L225 Difference]: With dead ends: 18383 [2021-12-28 00:44:57,121 INFO L226 Difference]: Without dead ends: 12297 [2021-12-28 00:44:57,136 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 [2021-12-28 00:44:57,136 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1072 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:57,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 1265 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:44:57,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12297 states. [2021-12-28 00:44:57,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12297 to 12204. [2021-12-28 00:44:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12204 states, 10121 states have (on average 1.6489477324375061) internal successors, (16689), 10127 states have internal predecessors, (16689), 2059 states have call successors, (2059), 19 states have call predecessors, (2059), 23 states have return successors, (2254), 2057 states have call predecessors, (2254), 2058 states have call successors, (2254) [2021-12-28 00:44:57,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12204 states to 12204 states and 21002 transitions. [2021-12-28 00:44:57,743 INFO L78 Accepts]: Start accepts. Automaton has 12204 states and 21002 transitions. Word has length 121 [2021-12-28 00:44:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:44:57,743 INFO L470 AbstractCegarLoop]: Abstraction has 12204 states and 21002 transitions. [2021-12-28 00:44:57,743 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) [2021-12-28 00:44:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 12204 states and 21002 transitions. [2021-12-28 00:44:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-28 00:44:57,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:44:57,812 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] [2021-12-28 00:44:57,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:44:57,812 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:44:57,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:44:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1919234284, now seen corresponding path program 1 times [2021-12-28 00:44:57,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:44:57,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751677777] [2021-12-28 00:44:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:44:57,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:44:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:44:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:44:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:44:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:44:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:44:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:44:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:44:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:44:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:44:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:44:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:44:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:44:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:44:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:44:57,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:44:57,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751677777] [2021-12-28 00:44:57,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751677777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:44:57,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:44:57,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:44:57,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124413505] [2021-12-28 00:44:57,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:44:57,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:44:57,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:44:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:44:57,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:44:57,894 INFO L87 Difference]: Start difference. First operand 12204 states and 21002 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) [2021-12-28 00:44:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:44:59,295 INFO L93 Difference]: Finished difference Result 29341 states and 51037 transitions. [2021-12-28 00:44:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:44:59,295 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 [2021-12-28 00:44:59,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:44:59,355 INFO L225 Difference]: With dead ends: 29341 [2021-12-28 00:44:59,355 INFO L226 Difference]: Without dead ends: 19250 [2021-12-28 00:44:59,377 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 [2021-12-28 00:44:59,377 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1012 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:44:59,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 1255 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:44:59,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19250 states. [2021-12-28 00:45:00,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19250 to 19157. [2021-12-28 00:45:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19157 states, 15871 states have (on average 1.6230231239367399) internal successors, (25759), 15877 states have internal predecessors, (25759), 3262 states have call successors, (3262), 19 states have call predecessors, (3262), 23 states have return successors, (3601), 3260 states have call predecessors, (3601), 3261 states have call successors, (3601) [2021-12-28 00:45:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19157 states to 19157 states and 32622 transitions. [2021-12-28 00:45:00,505 INFO L78 Accepts]: Start accepts. Automaton has 19157 states and 32622 transitions. Word has length 122 [2021-12-28 00:45:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:00,506 INFO L470 AbstractCegarLoop]: Abstraction has 19157 states and 32622 transitions. [2021-12-28 00:45:00,506 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) [2021-12-28 00:45:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19157 states and 32622 transitions. [2021-12-28 00:45:00,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:45:00,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:00,521 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] [2021-12-28 00:45:00,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:45:00,521 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:00,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:00,522 INFO L85 PathProgramCache]: Analyzing trace with hash 427103209, now seen corresponding path program 1 times [2021-12-28 00:45:00,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:00,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626622190] [2021-12-28 00:45:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:00,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:45:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:45:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:45:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:45:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:45:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:45:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:00,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626622190] [2021-12-28 00:45:00,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626622190] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:00,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:00,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:00,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523749969] [2021-12-28 00:45:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:00,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:00,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:00,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:00,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:00,587 INFO L87 Difference]: Start difference. First operand 19157 states and 32622 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) [2021-12-28 00:45:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:02,569 INFO L93 Difference]: Finished difference Result 50773 states and 87955 transitions. [2021-12-28 00:45:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:02,569 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 [2021-12-28 00:45:02,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:02,792 INFO L225 Difference]: With dead ends: 50773 [2021-12-28 00:45:02,793 INFO L226 Difference]: Without dead ends: 34371 [2021-12-28 00:45:02,827 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 [2021-12-28 00:45:02,828 INFO L933 BasicCegarLoop]: 521 mSDtfsCounter, 1013 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:02,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 1287 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:45:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34371 states. [2021-12-28 00:45:04,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34371 to 34278. [2021-12-28 00:45:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34278 states, 28542 states have (on average 1.619543129423306) internal successors, (46225), 28548 states have internal predecessors, (46225), 5712 states have call successors, (5712), 19 states have call predecessors, (5712), 23 states have return successors, (6325), 5710 states have call predecessors, (6325), 5711 states have call successors, (6325) [2021-12-28 00:45:04,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34278 states to 34278 states and 58262 transitions. [2021-12-28 00:45:04,815 INFO L78 Accepts]: Start accepts. Automaton has 34278 states and 58262 transitions. Word has length 123 [2021-12-28 00:45:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:04,815 INFO L470 AbstractCegarLoop]: Abstraction has 34278 states and 58262 transitions. [2021-12-28 00:45:04,816 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) [2021-12-28 00:45:04,816 INFO L276 IsEmpty]: Start isEmpty. Operand 34278 states and 58262 transitions. [2021-12-28 00:45:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:45:04,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:04,836 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] [2021-12-28 00:45:04,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:45:04,837 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1625053902, now seen corresponding path program 1 times [2021-12-28 00:45:04,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:04,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936404398] [2021-12-28 00:45:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:04,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:45:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:45:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:45:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:45:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:45:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:45:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:04,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:04,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936404398] [2021-12-28 00:45:04,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936404398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:04,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:04,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:04,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928973938] [2021-12-28 00:45:04,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:04,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:04,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:04,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:04,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:04,926 INFO L87 Difference]: Start difference. First operand 34278 states and 58262 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) [2021-12-28 00:45:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:07,875 INFO L93 Difference]: Finished difference Result 93645 states and 161354 transitions. [2021-12-28 00:45:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:07,876 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 [2021-12-28 00:45:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:08,090 INFO L225 Difference]: With dead ends: 93645 [2021-12-28 00:45:08,090 INFO L226 Difference]: Without dead ends: 63038 [2021-12-28 00:45:08,165 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 [2021-12-28 00:45:08,166 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 995 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:08,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 1300 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:45:08,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63038 states. [2021-12-28 00:45:11,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63038 to 62945. [2021-12-28 00:45:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62945 states, 52696 states have (on average 1.6151131015636861) internal successors, (85110), 52702 states have internal predecessors, (85110), 10225 states have call successors, (10225), 19 states have call predecessors, (10225), 23 states have return successors, (11370), 10223 states have call predecessors, (11370), 10224 states have call successors, (11370) [2021-12-28 00:45:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62945 states to 62945 states and 106705 transitions. [2021-12-28 00:45:11,595 INFO L78 Accepts]: Start accepts. Automaton has 62945 states and 106705 transitions. Word has length 124 [2021-12-28 00:45:11,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:11,595 INFO L470 AbstractCegarLoop]: Abstraction has 62945 states and 106705 transitions. [2021-12-28 00:45:11,596 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) [2021-12-28 00:45:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 62945 states and 106705 transitions. [2021-12-28 00:45:11,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-28 00:45:11,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:11,613 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] [2021-12-28 00:45:11,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:45:11,613 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:11,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1369288023, now seen corresponding path program 1 times [2021-12-28 00:45:11,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:11,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627807039] [2021-12-28 00:45:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:11,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:45:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:45:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:45:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:45:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:45:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:45:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:11,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:11,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627807039] [2021-12-28 00:45:11,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627807039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:11,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:11,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:45:11,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983926789] [2021-12-28 00:45:11,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:11,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:45:11,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:11,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:45:11,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:45:11,696 INFO L87 Difference]: Start difference. First operand 62945 states and 106705 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (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) [2021-12-28 00:45:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:16,556 INFO L93 Difference]: Finished difference Result 118021 states and 203731 transitions. [2021-12-28 00:45:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:45:16,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (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 125 [2021-12-28 00:45:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:17,117 INFO L225 Difference]: With dead ends: 118021 [2021-12-28 00:45:17,117 INFO L226 Difference]: Without dead ends: 117911 [2021-12-28 00:45:17,154 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 [2021-12-28 00:45:17,155 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1008 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:17,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 1286 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:45:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117911 states. [2021-12-28 00:45:22,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117911 to 117818. [2021-12-28 00:45:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117818 states, 99201 states have (on average 1.609641031844437) internal successors, (159678), 99207 states have internal predecessors, (159678), 18593 states have call successors, (18593), 19 states have call predecessors, (18593), 23 states have return successors, (20784), 18591 states have call predecessors, (20784), 18592 states have call successors, (20784) [2021-12-28 00:45:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117818 states to 117818 states and 199055 transitions. [2021-12-28 00:45:23,171 INFO L78 Accepts]: Start accepts. Automaton has 117818 states and 199055 transitions. Word has length 125 [2021-12-28 00:45:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:23,171 INFO L470 AbstractCegarLoop]: Abstraction has 117818 states and 199055 transitions. [2021-12-28 00:45:23,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (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) [2021-12-28 00:45:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 117818 states and 199055 transitions. [2021-12-28 00:45:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-28 00:45:23,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:23,189 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, 1] [2021-12-28 00:45:23,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:45:23,190 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:23,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1554603955, now seen corresponding path program 1 times [2021-12-28 00:45:23,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:23,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671643141] [2021-12-28 00:45:23,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:23,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:45:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:45:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:45:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:45:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:45:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:45:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-28 00:45:23,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:23,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671643141] [2021-12-28 00:45:23,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671643141] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:45:23,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181806472] [2021-12-28 00:45:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:23,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:23,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:45:23,383 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:45:23,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-28 00:45:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:23,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-28 00:45:23,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:45:23,882 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-28 00:45:23,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:45:23,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181806472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:23,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:45:23,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2021-12-28 00:45:23,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570554210] [2021-12-28 00:45:23,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:23,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:45:23,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:45:23,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2021-12-28 00:45:23,884 INFO L87 Difference]: Start difference. First operand 117818 states and 199055 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-28 00:45:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:45:28,650 INFO L93 Difference]: Finished difference Result 118116 states and 199470 transitions. [2021-12-28 00:45:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 00:45:28,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 126 [2021-12-28 00:45:28,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:45:29,238 INFO L225 Difference]: With dead ends: 118116 [2021-12-28 00:45:29,238 INFO L226 Difference]: Without dead ends: 118012 [2021-12-28 00:45:29,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1609, Unknown=0, NotChecked=0, Total=1806 [2021-12-28 00:45:29,279 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 716 mSDsluCounter, 4004 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 00:45:29,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 4493 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 00:45:29,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118012 states. [2021-12-28 00:45:34,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118012 to 117957. [2021-12-28 00:45:34,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117957 states, 99307 states have (on average 1.6094031639260071) internal successors, (159825), 99315 states have internal predecessors, (159825), 18612 states have call successors, (18612), 30 states have call predecessors, (18612), 37 states have return successors, (20816), 18611 states have call predecessors, (20816), 18610 states have call successors, (20816) [2021-12-28 00:45:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117957 states to 117957 states and 199253 transitions. [2021-12-28 00:45:35,232 INFO L78 Accepts]: Start accepts. Automaton has 117957 states and 199253 transitions. Word has length 126 [2021-12-28 00:45:35,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:45:35,232 INFO L470 AbstractCegarLoop]: Abstraction has 117957 states and 199253 transitions. [2021-12-28 00:45:35,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-28 00:45:35,232 INFO L276 IsEmpty]: Start isEmpty. Operand 117957 states and 199253 transitions. [2021-12-28 00:45:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-28 00:45:35,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:45:35,254 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, 1, 1] [2021-12-28 00:45:35,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-28 00:45:35,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:45:35,471 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:45:35,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:45:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1949186296, now seen corresponding path program 1 times [2021-12-28 00:45:35,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:45:35,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463591668] [2021-12-28 00:45:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:45:35,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:45:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:45:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:45:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:45:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:45:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:45:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:45:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:45:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:45:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:45:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:45:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:45:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:45:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:45:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:45:35,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:45:35,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463591668] [2021-12-28 00:45:35,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463591668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:45:35,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:45:35,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:45:35,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162221072] [2021-12-28 00:45:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:45:35,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:45:35,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:45:35,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:45:35,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:45:35,555 INFO L87 Difference]: Start difference. First operand 117957 states and 199253 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 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)