./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product23.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 aa34593061e3e0a5eeea5cc3a3930a050ef50f60dff03c88799c643f69d7f641 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 14:58:35,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 14:58:35,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 14:58:35,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 14:58:35,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 14:58:35,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 14:58:35,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 14:58:35,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 14:58:35,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 14:58:35,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 14:58:35,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 14:58:35,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 14:58:35,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 14:58:35,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 14:58:35,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 14:58:35,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 14:58:35,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 14:58:35,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 14:58:35,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 14:58:35,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 14:58:35,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 14:58:35,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 14:58:35,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 14:58:35,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 14:58:35,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 14:58:35,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 14:58:35,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 14:58:35,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 14:58:35,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 14:58:35,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 14:58:35,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 14:58:35,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 14:58:35,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 14:58:35,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 14:58:35,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 14:58:35,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 14:58:35,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 14:58:35,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 14:58:35,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 14:58:35,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 14:58:35,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 14:58:35,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 14:58:35,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 14:58:35,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 14:58:35,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 14:58:35,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 14:58:35,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 14:58:35,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 14:58:35,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 14:58:35,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 14:58:35,637 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 14:58:35,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 14:58:35,638 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 14:58:35,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 14:58:35,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 14:58:35,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 14:58:35,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 14:58:35,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 14:58:35,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 14:58:35,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 14:58:35,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 14:58:35,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 14:58:35,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 14:58:35,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 14:58:35,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 14:58:35,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 14:58:35,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:58:35,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 14:58:35,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 14:58:35,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 14:58:35,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 14:58:35,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 14:58:35,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 14:58:35,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 14:58:35,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 14:58:35,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 14:58:35,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa34593061e3e0a5eeea5cc3a3930a050ef50f60dff03c88799c643f69d7f641 [2021-12-17 14:58:35,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 14:58:35,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 14:58:35,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 14:58:35,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 14:58:35,923 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 14:58:35,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product23.cil.c [2021-12-17 14:58:35,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a080e9a6/55f017f25c8f485cb1daa9c1a7e41629/FLAG3cd4f7614 [2021-12-17 14:58:36,497 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 14:58:36,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product23.cil.c [2021-12-17 14:58:36,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a080e9a6/55f017f25c8f485cb1daa9c1a7e41629/FLAG3cd4f7614 [2021-12-17 14:58:36,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a080e9a6/55f017f25c8f485cb1daa9c1a7e41629 [2021-12-17 14:58:36,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 14:58:36,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 14:58:36,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 14:58:36,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 14:58:36,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 14:58:36,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:58:36" (1/1) ... [2021-12-17 14:58:36,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7621e095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:36, skipping insertion in model container [2021-12-17 14:58:36,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:58:36" (1/1) ... [2021-12-17 14:58:36,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 14:58:36,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 14:58:37,297 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_spec4_product23.cil.c[63051,63064] [2021-12-17 14:58:37,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:58:37,314 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 14:58:37,452 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_spec4_product23.cil.c[63051,63064] [2021-12-17 14:58:37,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:58:37,480 INFO L208 MainTranslator]: Completed translation [2021-12-17 14:58:37,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37 WrapperNode [2021-12-17 14:58:37,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 14:58:37,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 14:58:37,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 14:58:37,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 14:58:37,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,612 INFO L137 Inliner]: procedures = 130, calls = 218, calls flagged for inlining = 59, calls inlined = 52, statements flattened = 970 [2021-12-17 14:58:37,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 14:58:37,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 14:58:37,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 14:58:37,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 14:58:37,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 14:58:37,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 14:58:37,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 14:58:37,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 14:58:37,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (1/1) ... [2021-12-17 14:58:37,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:58:37,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:37,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 14:58:37,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 14:58:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 14:58:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 14:58:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 14:58:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 14:58:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 14:58:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 14:58:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 14:58:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 14:58:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-17 14:58:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-17 14:58:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 14:58:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 14:58:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 14:58:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 14:58:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 14:58:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 14:58:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 14:58:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 14:58:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 14:58:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 14:58:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 14:58:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 14:58:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 14:58:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 14:58:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 14:58:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 14:58:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 14:58:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 14:58:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 14:58:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 14:58:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 14:58:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 14:58:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 14:58:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 14:58:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 14:58:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 14:58:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 14:58:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 14:58:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 14:58:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 14:58:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 14:58:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 14:58:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 14:58:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 14:58:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 14:58:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 14:58:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 14:58:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 14:58:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 14:58:38,056 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 14:58:38,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 14:58:38,690 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 14:58:38,704 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 14:58:38,704 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 14:58:38,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:58:38 BoogieIcfgContainer [2021-12-17 14:58:38,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 14:58:38,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 14:58:38,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 14:58:38,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 14:58:38,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 02:58:36" (1/3) ... [2021-12-17 14:58:38,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d3d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:58:38, skipping insertion in model container [2021-12-17 14:58:38,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:37" (2/3) ... [2021-12-17 14:58:38,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d3d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:58:38, skipping insertion in model container [2021-12-17 14:58:38,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:58:38" (3/3) ... [2021-12-17 14:58:38,716 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product23.cil.c [2021-12-17 14:58:38,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 14:58:38,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 14:58:38,768 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 14:58:38,775 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 14:58:38,776 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 14:58:38,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 293 states have (on average 1.57679180887372) internal successors, (462), 296 states have internal predecessors, (462), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-17 14:58:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-17 14:58:38,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:38,835 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-17 14:58:38,835 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:38,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1688231146, now seen corresponding path program 1 times [2021-12-17 14:58:38,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:38,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366541727] [2021-12-17 14:58:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:38,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:58:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:58:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:58:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 14:58:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 14:58:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:58:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:58:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:58:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:58:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:58:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-17 14:58:39,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:39,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366541727] [2021-12-17 14:58:39,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366541727] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:58:39,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148732792] [2021-12-17 14:58:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:39,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:39,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:39,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:58:39,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 14:58:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:39,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 14:58:39,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:58:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 14:58:39,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:58:39,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148732792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:39,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:58:39,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 14:58:39,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669990503] [2021-12-17 14:58:39,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:39,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 14:58:39,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 14:58:39,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:58:39,762 INFO L87 Difference]: Start difference. First operand has 369 states, 293 states have (on average 1.57679180887372) internal successors, (462), 296 states have internal predecessors, (462), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:39,820 INFO L93 Difference]: Finished difference Result 545 states and 822 transitions. [2021-12-17 14:58:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 14:58:39,822 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2021-12-17 14:58:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:39,837 INFO L225 Difference]: With dead ends: 545 [2021-12-17 14:58:39,837 INFO L226 Difference]: Without dead ends: 362 [2021-12-17 14:58:39,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:58:39,846 INFO L933 BasicCegarLoop]: 562 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, 562 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:39,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:58:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-12-17 14:58:39,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-12-17 14:58:39,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 287 states have (on average 1.5714285714285714) internal successors, (451), 289 states have internal predecessors, (451), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-17 14:58:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 554 transitions. [2021-12-17 14:58:39,908 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 554 transitions. Word has length 101 [2021-12-17 14:58:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:39,909 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 554 transitions. [2021-12-17 14:58:39,909 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:39,909 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 554 transitions. [2021-12-17 14:58:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-17 14:58:39,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:39,919 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-17 14:58:39,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 14:58:40,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 14:58:40,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:40,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:40,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1938769829, now seen corresponding path program 1 times [2021-12-17 14:58:40,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:40,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144714857] [2021-12-17 14:58:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:40,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:58:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:58:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:58:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 14:58:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 14:58:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:58:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 14:58:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:58:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 14:58:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:58:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-17 14:58:40,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:40,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144714857] [2021-12-17 14:58:40,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144714857] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:58:40,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891025448] [2021-12-17 14:58:40,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:40,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:40,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:40,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:58:40,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 14:58:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:40,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 14:58:40,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:58:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 14:58:40,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:58:40,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891025448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:40,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:58:40,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 14:58:40,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451352188] [2021-12-17 14:58:40,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:40,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:58:40,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:40,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:58:40,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:58:40,794 INFO L87 Difference]: Start difference. First operand 362 states and 554 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:40,838 INFO L93 Difference]: Finished difference Result 535 states and 800 transitions. [2021-12-17 14:58:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:58:40,839 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2021-12-17 14:58:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:40,844 INFO L225 Difference]: With dead ends: 535 [2021-12-17 14:58:40,844 INFO L226 Difference]: Without dead ends: 365 [2021-12-17 14:58:40,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:58:40,846 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:40,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:58:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-12-17 14:58:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 364. [2021-12-17 14:58:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 289 states have (on average 1.5674740484429066) internal successors, (453), 291 states have internal predecessors, (453), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-17 14:58:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 556 transitions. [2021-12-17 14:58:40,890 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 556 transitions. Word has length 102 [2021-12-17 14:58:40,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:40,891 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 556 transitions. [2021-12-17 14:58:40,891 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 556 transitions. [2021-12-17 14:58:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 14:58:40,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:40,894 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-17 14:58:40,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 14:58:41,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 14:58:41,108 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:41,108 INFO L85 PathProgramCache]: Analyzing trace with hash -275861121, now seen corresponding path program 1 times [2021-12-17 14:58:41,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:41,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259396709] [2021-12-17 14:58:41,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:41,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:58:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:58:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:58:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 14:58:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:58:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 14:58:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:58:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:58:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:58:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:58:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:58:41,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:41,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259396709] [2021-12-17 14:58:41,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259396709] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:58:41,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440663268] [2021-12-17 14:58:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:41,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:41,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:41,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:58:41,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 14:58:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:41,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:58:41,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:58:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 14:58:41,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:58:41,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440663268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:41,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:58:41,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 14:58:41,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682581844] [2021-12-17 14:58:41,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:41,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:58:41,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:58:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:58:41,711 INFO L87 Difference]: Start difference. First operand 364 states and 556 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:41,738 INFO L93 Difference]: Finished difference Result 776 states and 1204 transitions. [2021-12-17 14:58:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:58:41,739 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2021-12-17 14:58:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:41,742 INFO L225 Difference]: With dead ends: 776 [2021-12-17 14:58:41,742 INFO L226 Difference]: Without dead ends: 439 [2021-12-17 14:58:41,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:58:41,744 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 134 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:41,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1078 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:58:41,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-12-17 14:58:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 431. [2021-12-17 14:58:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 342 states have (on average 1.5847953216374269) internal successors, (542), 344 states have internal predecessors, (542), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-17 14:58:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 673 transitions. [2021-12-17 14:58:41,770 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 673 transitions. Word has length 111 [2021-12-17 14:58:41,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:41,771 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 673 transitions. [2021-12-17 14:58:41,771 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 673 transitions. [2021-12-17 14:58:41,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 14:58:41,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:41,773 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:41,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 14:58:41,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:41,990 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:41,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash 503398376, now seen corresponding path program 1 times [2021-12-17 14:58:41,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:41,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654347710] [2021-12-17 14:58:41,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:41,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:58:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:58:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:58:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:58:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 14:58:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:58:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:58:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:58:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:58:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:58:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:58:42,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:42,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654347710] [2021-12-17 14:58:42,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654347710] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:58:42,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179012697] [2021-12-17 14:58:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:42,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:42,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:58:42,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 14:58:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 14:58:42,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:58:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-17 14:58:42,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:58:42,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179012697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:42,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:58:42,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 14:58:42,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117951926] [2021-12-17 14:58:42,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:42,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:58:42,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:42,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:58:42,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:58:42,624 INFO L87 Difference]: Start difference. First operand 431 states and 673 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:42,680 INFO L93 Difference]: Finished difference Result 853 states and 1336 transitions. [2021-12-17 14:58:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 14:58:42,680 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2021-12-17 14:58:42,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:42,683 INFO L225 Difference]: With dead ends: 853 [2021-12-17 14:58:42,683 INFO L226 Difference]: Without dead ends: 433 [2021-12-17 14:58:42,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:58:42,686 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 152 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:42,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2006 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:58:42,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-12-17 14:58:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2021-12-17 14:58:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 343 states have (on average 1.5830903790087463) internal successors, (543), 346 states have internal predecessors, (543), 66 states have call successors, (66), 22 states have call predecessors, (66), 23 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2021-12-17 14:58:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 676 transitions. [2021-12-17 14:58:42,704 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 676 transitions. Word has length 112 [2021-12-17 14:58:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:42,705 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 676 transitions. [2021-12-17 14:58:42,705 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 676 transitions. [2021-12-17 14:58:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 14:58:42,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:42,707 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:42,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 14:58:42,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:42,923 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:42,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:42,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1792357061, now seen corresponding path program 1 times [2021-12-17 14:58:42,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:42,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840458475] [2021-12-17 14:58:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:42,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:42,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 14:58:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 14:58:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 14:58:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 14:58:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:58:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:58:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:58:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:58:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:58:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 14:58:43,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:43,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840458475] [2021-12-17 14:58:43,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840458475] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:58:43,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201091297] [2021-12-17 14:58:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:43,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:43,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:58:43,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 14:58:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 14:58:43,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:58:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-17 14:58:43,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:58:43,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201091297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:43,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:58:43,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 14:58:43,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518743010] [2021-12-17 14:58:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:43,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:58:43,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:58:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:58:43,532 INFO L87 Difference]: Start difference. First operand 433 states and 676 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:43,595 INFO L93 Difference]: Finished difference Result 855 states and 1341 transitions. [2021-12-17 14:58:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 14:58:43,596 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2021-12-17 14:58:43,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:43,599 INFO L225 Difference]: With dead ends: 855 [2021-12-17 14:58:43,599 INFO L226 Difference]: Without dead ends: 435 [2021-12-17 14:58:43,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-17 14:58:43,602 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 151 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:43,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1995 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:58:43,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-12-17 14:58:43,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2021-12-17 14:58:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 344 states have (on average 1.5813953488372092) internal successors, (544), 348 states have internal predecessors, (544), 66 states have call successors, (66), 22 states have call predecessors, (66), 24 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-17 14:58:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 682 transitions. [2021-12-17 14:58:43,619 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 682 transitions. Word has length 113 [2021-12-17 14:58:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:43,619 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 682 transitions. [2021-12-17 14:58:43,620 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 682 transitions. [2021-12-17 14:58:43,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 14:58:43,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:43,622 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:43,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 14:58:43,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:43,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:43,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:43,844 INFO L85 PathProgramCache]: Analyzing trace with hash 641723540, now seen corresponding path program 1 times [2021-12-17 14:58:43,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:43,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563537650] [2021-12-17 14:58:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:43,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:58:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 14:58:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 14:58:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:58:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:58:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:58:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:58:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:58:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:43,946 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:58:43,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:43,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563537650] [2021-12-17 14:58:43,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563537650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:43,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:43,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:58:43,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503542853] [2021-12-17 14:58:43,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:43,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:58:43,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:43,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:58:43,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:58:43,948 INFO L87 Difference]: Start difference. First operand 435 states and 682 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:45,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:45,471 INFO L93 Difference]: Finished difference Result 970 states and 1546 transitions. [2021-12-17 14:58:45,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 14:58:45,472 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2021-12-17 14:58:45,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:45,477 INFO L225 Difference]: With dead ends: 970 [2021-12-17 14:58:45,477 INFO L226 Difference]: Without dead ends: 558 [2021-12-17 14:58:45,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 14:58:45,482 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 1349 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:45,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1369 Valid, 1815 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:58:45,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-12-17 14:58:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 435. [2021-12-17 14:58:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 344 states have (on average 1.5813953488372092) internal successors, (544), 348 states have internal predecessors, (544), 66 states have call successors, (66), 22 states have call predecessors, (66), 24 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2021-12-17 14:58:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 681 transitions. [2021-12-17 14:58:45,526 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 681 transitions. Word has length 114 [2021-12-17 14:58:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 681 transitions. [2021-12-17 14:58:45,526 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 681 transitions. [2021-12-17 14:58:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-17 14:58:45,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:45,529 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:45,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 14:58:45,529 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:45,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:45,530 INFO L85 PathProgramCache]: Analyzing trace with hash 890985033, now seen corresponding path program 2 times [2021-12-17 14:58:45,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:45,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507163632] [2021-12-17 14:58:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:45,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 14:58:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:58:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 14:58:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:58:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:58:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:58:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:58:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:58:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:58:45,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:45,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507163632] [2021-12-17 14:58:45,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507163632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:45,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:45,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:58:45,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792249142] [2021-12-17 14:58:45,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:45,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:58:45,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:45,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:58:45,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:58:45,649 INFO L87 Difference]: Start difference. First operand 435 states and 681 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:47,178 INFO L93 Difference]: Finished difference Result 972 states and 1549 transitions. [2021-12-17 14:58:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 14:58:47,179 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2021-12-17 14:58:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:47,182 INFO L225 Difference]: With dead ends: 972 [2021-12-17 14:58:47,183 INFO L226 Difference]: Without dead ends: 560 [2021-12-17 14:58:47,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 14:58:47,185 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 1347 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:47,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 1807 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:58:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-12-17 14:58:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 437. [2021-12-17 14:58:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 345 states have (on average 1.5797101449275361) internal successors, (545), 350 states have internal predecessors, (545), 66 states have call successors, (66), 22 states have call predecessors, (66), 25 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-17 14:58:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 684 transitions. [2021-12-17 14:58:47,223 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 684 transitions. Word has length 115 [2021-12-17 14:58:47,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:47,223 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 684 transitions. [2021-12-17 14:58:47,224 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, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 684 transitions. [2021-12-17 14:58:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 14:58:47,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:47,226 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:47,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 14:58:47,227 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 324365389, now seen corresponding path program 1 times [2021-12-17 14:58:47,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:47,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015440055] [2021-12-17 14:58:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:47,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:58:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:58:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:58:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:58:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:58:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:58:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:58:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:58:47,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:47,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015440055] [2021-12-17 14:58:47,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015440055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:47,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:47,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:58:47,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710477590] [2021-12-17 14:58:47,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:47,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:58:47,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:47,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:58:47,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:58:47,353 INFO L87 Difference]: Start difference. First operand 437 states and 684 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:48,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:48,878 INFO L93 Difference]: Finished difference Result 972 states and 1548 transitions. [2021-12-17 14:58:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 14:58:48,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2021-12-17 14:58:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:48,882 INFO L225 Difference]: With dead ends: 972 [2021-12-17 14:58:48,882 INFO L226 Difference]: Without dead ends: 560 [2021-12-17 14:58:48,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-12-17 14:58:48,884 INFO L933 BasicCegarLoop]: 623 mSDtfsCounter, 1349 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:48,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 1805 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:58:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-12-17 14:58:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 437. [2021-12-17 14:58:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 345 states have (on average 1.5797101449275361) internal successors, (545), 350 states have internal predecessors, (545), 66 states have call successors, (66), 22 states have call predecessors, (66), 25 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-17 14:58:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 684 transitions. [2021-12-17 14:58:48,907 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 684 transitions. Word has length 116 [2021-12-17 14:58:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:48,908 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 684 transitions. [2021-12-17 14:58:48,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-17 14:58:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 684 transitions. [2021-12-17 14:58:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 14:58:48,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:48,910 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:48,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 14:58:48,911 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1466867855, now seen corresponding path program 1 times [2021-12-17 14:58:48,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:48,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510164265] [2021-12-17 14:58:48,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:48,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:48,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:48,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:58:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:58:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:58:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:58:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:58:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:58:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:58:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 14:58:49,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:49,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510164265] [2021-12-17 14:58:49,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510164265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:49,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:49,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:58:49,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706095610] [2021-12-17 14:58:49,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:49,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:58:49,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:49,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:58:49,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:58:49,052 INFO L87 Difference]: Start difference. First operand 437 states and 684 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-17 14:58:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:51,111 INFO L93 Difference]: Finished difference Result 970 states and 1543 transitions. [2021-12-17 14:58:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 14:58:51,112 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2021-12-17 14:58:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:51,115 INFO L225 Difference]: With dead ends: 970 [2021-12-17 14:58:51,115 INFO L226 Difference]: Without dead ends: 560 [2021-12-17 14:58:51,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 14:58:51,117 INFO L933 BasicCegarLoop]: 613 mSDtfsCounter, 1485 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:51,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 2329 Invalid, 3793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 3283 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 14:58:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-12-17 14:58:51,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 437. [2021-12-17 14:58:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 345 states have (on average 1.5797101449275361) internal successors, (545), 350 states have internal predecessors, (545), 66 states have call successors, (66), 22 states have call predecessors, (66), 25 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-17 14:58:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 683 transitions. [2021-12-17 14:58:51,143 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 683 transitions. Word has length 116 [2021-12-17 14:58:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:51,145 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 683 transitions. [2021-12-17 14:58:51,145 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-17 14:58:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 683 transitions. [2021-12-17 14:58:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 14:58:51,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:51,147 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:51,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 14:58:51,148 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:51,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:51,148 INFO L85 PathProgramCache]: Analyzing trace with hash 362066878, now seen corresponding path program 2 times [2021-12-17 14:58:51,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:51,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057375538] [2021-12-17 14:58:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:51,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 14:58:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:58:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:58:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:58:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:58:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:58:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:58:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:51,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 14:58:51,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:51,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057375538] [2021-12-17 14:58:51,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057375538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:51,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:51,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:58:51,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071647133] [2021-12-17 14:58:51,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:51,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:58:51,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:51,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:58:51,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:58:51,286 INFO L87 Difference]: Start difference. First operand 437 states and 683 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-17 14:58:53,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:53,315 INFO L93 Difference]: Finished difference Result 972 states and 1549 transitions. [2021-12-17 14:58:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 14:58:53,315 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2021-12-17 14:58:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:53,318 INFO L225 Difference]: With dead ends: 972 [2021-12-17 14:58:53,319 INFO L226 Difference]: Without dead ends: 562 [2021-12-17 14:58:53,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 14:58:53,321 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 1480 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:53,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 2330 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 3325 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 14:58:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-12-17 14:58:53,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 439. [2021-12-17 14:58:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.5780346820809248) internal successors, (546), 352 states have internal predecessors, (546), 66 states have call successors, (66), 22 states have call predecessors, (66), 26 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2021-12-17 14:58:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 689 transitions. [2021-12-17 14:58:53,342 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 689 transitions. Word has length 117 [2021-12-17 14:58:53,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:53,342 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 689 transitions. [2021-12-17 14:58:53,342 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, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-17 14:58:53,343 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 689 transitions. [2021-12-17 14:58:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 14:58:53,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:53,344 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:53,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 14:58:53,345 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:53,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:53,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1603935222, now seen corresponding path program 1 times [2021-12-17 14:58:53,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:53,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236206489] [2021-12-17 14:58:53,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:53,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 14:58:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:58:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:58:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:58:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:58:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:58:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:58:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-17 14:58:53,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236206489] [2021-12-17 14:58:53,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236206489] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:58:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583303156] [2021-12-17 14:58:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:53,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:53,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:58:53,453 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) [2021-12-17 14:58:53,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 14:58:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:53,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:58:53,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:58:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:58:53,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 14:58:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:58:54,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583303156] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 14:58:54,025 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 14:58:54,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-17 14:58:54,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306732576] [2021-12-17 14:58:54,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 14:58:54,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 14:58:54,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:54,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 14:58:54,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:58:54,026 INFO L87 Difference]: Start difference. First operand 439 states and 689 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-17 14:58:56,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:56,874 INFO L93 Difference]: Finished difference Result 1831 states and 3107 transitions. [2021-12-17 14:58:56,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 14:58:56,874 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 118 [2021-12-17 14:58:56,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:56,881 INFO L225 Difference]: With dead ends: 1831 [2021-12-17 14:58:56,882 INFO L226 Difference]: Without dead ends: 1423 [2021-12-17 14:58:56,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-17 14:58:56,884 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 3297 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 4443 mSolverCounterSat, 1284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 5727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1284 IncrementalHoareTripleChecker+Valid, 4443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:56,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3299 Valid, 4213 Invalid, 5727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1284 Valid, 4443 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-17 14:58:56,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2021-12-17 14:58:56,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 857. [2021-12-17 14:58:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 685 states have (on average 1.6233576642335767) internal successors, (1112), 691 states have internal predecessors, (1112), 145 states have call successors, (145), 22 states have call predecessors, (145), 26 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2021-12-17 14:58:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1423 transitions. [2021-12-17 14:58:56,933 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1423 transitions. Word has length 118 [2021-12-17 14:58:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:56,933 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1423 transitions. [2021-12-17 14:58:56,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-17 14:58:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1423 transitions. [2021-12-17 14:58:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 14:58:56,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:56,937 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:56,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 14:58:57,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:58:57,160 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1520542570, now seen corresponding path program 1 times [2021-12-17 14:58:57,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:57,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160717067] [2021-12-17 14:58:57,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:57,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:58:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:58:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:58:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:58:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:58:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:58:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:58:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:58:57,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:57,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160717067] [2021-12-17 14:58:57,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160717067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:57,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:57,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:58:57,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753535055] [2021-12-17 14:58:57,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:57,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:58:57,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:57,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:58:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:58:57,255 INFO L87 Difference]: Start difference. First operand 857 states and 1423 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:58,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:58,394 INFO L93 Difference]: Finished difference Result 2157 states and 3675 transitions. [2021-12-17 14:58:58,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:58:58,394 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2021-12-17 14:58:58,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:58,401 INFO L225 Difference]: With dead ends: 2157 [2021-12-17 14:58:58,401 INFO L226 Difference]: Without dead ends: 1378 [2021-12-17 14:58:58,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:58:58,404 INFO L933 BasicCegarLoop]: 666 mSDtfsCounter, 1342 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:58,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 1555 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:58:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2021-12-17 14:58:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1247. [2021-12-17 14:58:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 996 states have (on average 1.6385542168674698) internal successors, (1632), 1002 states have internal predecessors, (1632), 224 states have call successors, (224), 22 states have call predecessors, (224), 26 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2021-12-17 14:58:58,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 2111 transitions. [2021-12-17 14:58:58,473 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 2111 transitions. Word has length 121 [2021-12-17 14:58:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:58,473 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 2111 transitions. [2021-12-17 14:58:58,474 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 2111 transitions. [2021-12-17 14:58:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 14:58:58,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:58,479 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:58,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 14:58:58,480 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:58,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:58,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1353879110, now seen corresponding path program 1 times [2021-12-17 14:58:58,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:58,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510987621] [2021-12-17 14:58:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:58,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:58:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:58:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:58:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:58:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:58:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:58:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:58:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:58:58,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:58,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510987621] [2021-12-17 14:58:58,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510987621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:58,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:58,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:58:58,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139819961] [2021-12-17 14:58:58,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:58,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:58:58,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:58:58,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:58:58,574 INFO L87 Difference]: Start difference. First operand 1247 states and 2111 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:58:59,673 INFO L93 Difference]: Finished difference Result 3131 states and 5384 transitions. [2021-12-17 14:58:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:58:59,674 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2021-12-17 14:58:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:58:59,683 INFO L225 Difference]: With dead ends: 3131 [2021-12-17 14:58:59,683 INFO L226 Difference]: Without dead ends: 2015 [2021-12-17 14:58:59,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:58:59,688 INFO L933 BasicCegarLoop]: 653 mSDtfsCounter, 1341 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:58:59,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 1511 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:58:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2021-12-17 14:58:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1884. [2021-12-17 14:58:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1514 states have (on average 1.6446499339498017) internal successors, (2490), 1520 states have internal predecessors, (2490), 343 states have call successors, (343), 22 states have call predecessors, (343), 26 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2021-12-17 14:58:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 3207 transitions. [2021-12-17 14:58:59,803 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 3207 transitions. Word has length 122 [2021-12-17 14:58:59,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:58:59,804 INFO L470 AbstractCegarLoop]: Abstraction has 1884 states and 3207 transitions. [2021-12-17 14:58:59,804 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:58:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 3207 transitions. [2021-12-17 14:58:59,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 14:58:59,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:58:59,814 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:58:59,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 14:58:59,815 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:58:59,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:58:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash -274204956, now seen corresponding path program 1 times [2021-12-17 14:58:59,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:58:59,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469543339] [2021-12-17 14:58:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:58:59,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:58:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:58:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:58:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:58:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:58:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:58:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:58:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:58:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:58:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:58:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:58:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:58:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:58:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:58:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:58:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:58:59,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:58:59,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469543339] [2021-12-17 14:58:59,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469543339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:58:59,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:58:59,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:58:59,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695980976] [2021-12-17 14:58:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:58:59,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:58:59,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:58:59,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:58:59,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:58:59,905 INFO L87 Difference]: Start difference. First operand 1884 states and 3207 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:00,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:00,998 INFO L93 Difference]: Finished difference Result 4611 states and 7995 transitions. [2021-12-17 14:59:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:00,998 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2021-12-17 14:59:00,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:01,012 INFO L225 Difference]: With dead ends: 4611 [2021-12-17 14:59:01,012 INFO L226 Difference]: Without dead ends: 2993 [2021-12-17 14:59:01,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:01,017 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 1334 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:01,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 1510 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:59:01,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-12-17 14:59:01,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2862. [2021-12-17 14:59:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2330 states have (on average 1.6497854077253218) internal successors, (3844), 2336 states have internal predecessors, (3844), 505 states have call successors, (505), 22 states have call predecessors, (505), 26 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2021-12-17 14:59:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 4901 transitions. [2021-12-17 14:59:01,159 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 4901 transitions. Word has length 123 [2021-12-17 14:59:01,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:01,159 INFO L470 AbstractCegarLoop]: Abstraction has 2862 states and 4901 transitions. [2021-12-17 14:59:01,159 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 4901 transitions. [2021-12-17 14:59:01,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 14:59:01,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:01,170 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:01,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 14:59:01,171 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:01,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1631697881, now seen corresponding path program 1 times [2021-12-17 14:59:01,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:01,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553560793] [2021-12-17 14:59:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:01,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 14:59:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:59:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:59:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:59:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:59:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:59:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:59:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:01,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:01,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553560793] [2021-12-17 14:59:01,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553560793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:01,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:01,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:01,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359234899] [2021-12-17 14:59:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:01,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:01,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:01,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:01,278 INFO L87 Difference]: Start difference. First operand 2862 states and 4901 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:02,458 INFO L93 Difference]: Finished difference Result 6950 states and 12130 transitions. [2021-12-17 14:59:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:02,459 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2021-12-17 14:59:02,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:02,481 INFO L225 Difference]: With dead ends: 6950 [2021-12-17 14:59:02,481 INFO L226 Difference]: Without dead ends: 4573 [2021-12-17 14:59:02,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:02,491 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 1338 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:02,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 1498 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:59:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2021-12-17 14:59:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 4442. [2021-12-17 14:59:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4442 states, 3665 states have (on average 1.6534788540245566) internal successors, (6060), 3671 states have internal predecessors, (6060), 750 states have call successors, (750), 22 states have call predecessors, (750), 26 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2021-12-17 14:59:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 7633 transitions. [2021-12-17 14:59:02,758 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 7633 transitions. Word has length 124 [2021-12-17 14:59:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:02,759 INFO L470 AbstractCegarLoop]: Abstraction has 4442 states and 7633 transitions. [2021-12-17 14:59:02,759 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 7633 transitions. [2021-12-17 14:59:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 14:59:02,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:02,773 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:02,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 14:59:02,773 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:02,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1176784224, now seen corresponding path program 1 times [2021-12-17 14:59:02,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:02,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470431388] [2021-12-17 14:59:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:02,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 14:59:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:59:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:59:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:59:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:59:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:59:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 14:59:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:02,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:02,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470431388] [2021-12-17 14:59:02,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470431388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:02,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:02,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:02,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534229146] [2021-12-17 14:59:02,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:02,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:02,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:02,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:02,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:02,865 INFO L87 Difference]: Start difference. First operand 4442 states and 7633 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:04,170 INFO L93 Difference]: Finished difference Result 11121 states and 19459 transitions. [2021-12-17 14:59:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:04,171 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2021-12-17 14:59:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:04,207 INFO L225 Difference]: With dead ends: 11121 [2021-12-17 14:59:04,207 INFO L226 Difference]: Without dead ends: 7416 [2021-12-17 14:59:04,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:04,220 INFO L933 BasicCegarLoop]: 668 mSDtfsCounter, 1331 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:04,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 1559 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:59:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7416 states. [2021-12-17 14:59:04,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7416 to 7285. [2021-12-17 14:59:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7285 states, 6015 states have (on average 1.6490440565253532) internal successors, (9919), 6021 states have internal predecessors, (9919), 1243 states have call successors, (1243), 22 states have call predecessors, (1243), 26 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2021-12-17 14:59:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7285 states to 7285 states and 12522 transitions. [2021-12-17 14:59:04,710 INFO L78 Accepts]: Start accepts. Automaton has 7285 states and 12522 transitions. Word has length 125 [2021-12-17 14:59:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:04,711 INFO L470 AbstractCegarLoop]: Abstraction has 7285 states and 12522 transitions. [2021-12-17 14:59:04,711 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7285 states and 12522 transitions. [2021-12-17 14:59:04,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-17 14:59:04,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:04,728 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:04,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 14:59:04,729 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:04,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:04,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1710262699, now seen corresponding path program 1 times [2021-12-17 14:59:04,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:04,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788389371] [2021-12-17 14:59:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:04,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:59:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:59:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:59:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:59:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:59:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 14:59:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:59:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:04,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:04,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788389371] [2021-12-17 14:59:04,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788389371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:04,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:04,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:04,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880090131] [2021-12-17 14:59:04,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:04,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:04,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:04,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:04,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:04,819 INFO L87 Difference]: Start difference. First operand 7285 states and 12522 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:06,188 INFO L93 Difference]: Finished difference Result 18541 states and 32423 transitions. [2021-12-17 14:59:06,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:06,188 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2021-12-17 14:59:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:06,235 INFO L225 Difference]: With dead ends: 18541 [2021-12-17 14:59:06,235 INFO L226 Difference]: Without dead ends: 12395 [2021-12-17 14:59:06,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:06,257 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 1329 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:06,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1347 Valid, 1517 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:59:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2021-12-17 14:59:06,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 12264. [2021-12-17 14:59:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12264 states, 10172 states have (on average 1.6486433346441212) internal successors, (16770), 10178 states have internal predecessors, (16770), 2065 states have call successors, (2065), 22 states have call predecessors, (2065), 26 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2021-12-17 14:59:06,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12264 states to 12264 states and 21095 transitions. [2021-12-17 14:59:06,988 INFO L78 Accepts]: Start accepts. Automaton has 12264 states and 21095 transitions. Word has length 126 [2021-12-17 14:59:06,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:06,989 INFO L470 AbstractCegarLoop]: Abstraction has 12264 states and 21095 transitions. [2021-12-17 14:59:06,990 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 12264 states and 21095 transitions. [2021-12-17 14:59:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 14:59:07,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:07,011 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:07,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 14:59:07,012 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:07,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash 518341794, now seen corresponding path program 1 times [2021-12-17 14:59:07,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:07,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931412825] [2021-12-17 14:59:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:07,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:59:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:59:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 14:59:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:59:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:59:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:59:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 14:59:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:07,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:07,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931412825] [2021-12-17 14:59:07,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931412825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:07,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:07,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:07,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180783106] [2021-12-17 14:59:07,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:07,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:07,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:07,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:07,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:07,110 INFO L87 Difference]: Start difference. First operand 12264 states and 21095 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:08,777 INFO L93 Difference]: Finished difference Result 29499 states and 51283 transitions. [2021-12-17 14:59:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:08,777 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2021-12-17 14:59:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:08,853 INFO L225 Difference]: With dead ends: 29499 [2021-12-17 14:59:08,853 INFO L226 Difference]: Without dead ends: 19348 [2021-12-17 14:59:08,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:08,888 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 1331 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:08,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1350 Valid, 1490 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:59:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19348 states. [2021-12-17 14:59:09,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19348 to 19217. [2021-12-17 14:59:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19217 states, 15922 states have (on average 1.6229116945107398) internal successors, (25840), 15928 states have internal predecessors, (25840), 3268 states have call successors, (3268), 22 states have call predecessors, (3268), 26 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2021-12-17 14:59:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19217 states to 19217 states and 32715 transitions. [2021-12-17 14:59:09,951 INFO L78 Accepts]: Start accepts. Automaton has 19217 states and 32715 transitions. Word has length 127 [2021-12-17 14:59:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:09,952 INFO L470 AbstractCegarLoop]: Abstraction has 19217 states and 32715 transitions. [2021-12-17 14:59:09,952 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 19217 states and 32715 transitions. [2021-12-17 14:59:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-17 14:59:09,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:09,974 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:09,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 14:59:09,975 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash -637091028, now seen corresponding path program 1 times [2021-12-17 14:59:09,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:09,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421690358] [2021-12-17 14:59:09,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:09,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:59:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:59:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 14:59:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:59:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:59:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:59:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 14:59:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:10,066 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:10,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:10,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421690358] [2021-12-17 14:59:10,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421690358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:10,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:10,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:10,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676991623] [2021-12-17 14:59:10,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:10,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:10,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:10,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:10,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:10,070 INFO L87 Difference]: Start difference. First operand 19217 states and 32715 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:12,474 INFO L93 Difference]: Finished difference Result 50931 states and 88201 transitions. [2021-12-17 14:59:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:12,474 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2021-12-17 14:59:12,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:12,679 INFO L225 Difference]: With dead ends: 50931 [2021-12-17 14:59:12,680 INFO L226 Difference]: Without dead ends: 34469 [2021-12-17 14:59:12,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:12,725 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 1327 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:12,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1345 Valid, 1515 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:59:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34469 states. [2021-12-17 14:59:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34469 to 34338. [2021-12-17 14:59:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34338 states, 28593 states have (on average 1.6194872870982409) internal successors, (46306), 28599 states have internal predecessors, (46306), 5718 states have call successors, (5718), 22 states have call predecessors, (5718), 26 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2021-12-17 14:59:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34338 states to 34338 states and 58355 transitions. [2021-12-17 14:59:14,866 INFO L78 Accepts]: Start accepts. Automaton has 34338 states and 58355 transitions. Word has length 128 [2021-12-17 14:59:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:14,866 INFO L470 AbstractCegarLoop]: Abstraction has 34338 states and 58355 transitions. [2021-12-17 14:59:14,867 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 34338 states and 58355 transitions. [2021-12-17 14:59:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-17 14:59:14,893 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:14,893 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:14,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 14:59:14,894 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:14,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash -574359300, now seen corresponding path program 1 times [2021-12-17 14:59:14,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:14,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397484117] [2021-12-17 14:59:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:14,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:59:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:59:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:59:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:59:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:59:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:59:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:59:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:14,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:14,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397484117] [2021-12-17 14:59:14,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397484117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:14,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:14,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:14,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519495167] [2021-12-17 14:59:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:14,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:14,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:14,984 INFO L87 Difference]: Start difference. First operand 34338 states and 58355 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:18,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:18,355 INFO L93 Difference]: Finished difference Result 93803 states and 161600 transitions. [2021-12-17 14:59:18,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:18,356 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2021-12-17 14:59:18,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:18,528 INFO L225 Difference]: With dead ends: 93803 [2021-12-17 14:59:18,528 INFO L226 Difference]: Without dead ends: 63136 [2021-12-17 14:59:18,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:18,593 INFO L933 BasicCegarLoop]: 653 mSDtfsCounter, 1325 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:18,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 1509 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 14:59:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63136 states. [2021-12-17 14:59:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63136 to 63005. [2021-12-17 14:59:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63005 states, 52747 states have (on average 1.6150871139590877) internal successors, (85191), 52753 states have internal predecessors, (85191), 10231 states have call successors, (10231), 22 states have call predecessors, (10231), 26 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2021-12-17 14:59:21,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63005 states to 63005 states and 106798 transitions. [2021-12-17 14:59:21,651 INFO L78 Accepts]: Start accepts. Automaton has 63005 states and 106798 transitions. Word has length 129 [2021-12-17 14:59:21,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:21,651 INFO L470 AbstractCegarLoop]: Abstraction has 63005 states and 106798 transitions. [2021-12-17 14:59:21,652 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 63005 states and 106798 transitions. [2021-12-17 14:59:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 14:59:21,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:21,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:21,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 14:59:21,681 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:21,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1841370228, now seen corresponding path program 1 times [2021-12-17 14:59:21,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:21,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142047381] [2021-12-17 14:59:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:21,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:59:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:59:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:59:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:59:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:59:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:59:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 14:59:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:21,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:21,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142047381] [2021-12-17 14:59:21,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142047381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:21,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:21,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:59:21,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338434843] [2021-12-17 14:59:21,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:21,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:59:21,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:59:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:59:21,778 INFO L87 Difference]: Start difference. First operand 63005 states and 106798 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:26,838 INFO L93 Difference]: Finished difference Result 118179 states and 203977 transitions. [2021-12-17 14:59:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:59:26,838 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2021-12-17 14:59:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:27,349 INFO L225 Difference]: With dead ends: 118179 [2021-12-17 14:59:27,349 INFO L226 Difference]: Without dead ends: 118009 [2021-12-17 14:59:27,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:59:27,390 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 1323 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:27,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 1515 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:59:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118009 states. [2021-12-17 14:59:32,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118009 to 117878. [2021-12-17 14:59:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117878 states, 99252 states have (on average 1.6096300326441784) internal successors, (159759), 99258 states have internal predecessors, (159759), 18599 states have call successors, (18599), 22 states have call predecessors, (18599), 26 states have return successors, (20790), 18597 states have call predecessors, (20790), 18598 states have call successors, (20790) [2021-12-17 14:59:33,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117878 states to 117878 states and 199148 transitions. [2021-12-17 14:59:33,003 INFO L78 Accepts]: Start accepts. Automaton has 117878 states and 199148 transitions. Word has length 130 [2021-12-17 14:59:33,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:59:33,003 INFO L470 AbstractCegarLoop]: Abstraction has 117878 states and 199148 transitions. [2021-12-17 14:59:33,004 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, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 117878 states and 199148 transitions. [2021-12-17 14:59:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 14:59:33,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:59:33,326 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:59:33,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 14:59:33,328 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:59:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:59:33,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2105367547, now seen corresponding path program 1 times [2021-12-17 14:59:33,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:59:33,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737010327] [2021-12-17 14:59:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:59:33,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:59:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:59:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:59:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:59:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:59:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:59:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:59:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:59:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:59:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:59:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:59:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:59:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:59:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:59:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:59:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 14:59:33,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:59:33,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737010327] [2021-12-17 14:59:33,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737010327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:59:33,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:59:33,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 14:59:33,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22578851] [2021-12-17 14:59:33,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:59:33,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 14:59:33,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:59:33,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 14:59:33,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:59:33,491 INFO L87 Difference]: Start difference. First operand 117878 states and 199148 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-17 14:59:40,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:59:40,072 INFO L93 Difference]: Finished difference Result 118672 states and 203705 transitions. [2021-12-17 14:59:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-17 14:59:40,073 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2021-12-17 14:59:40,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:59:40,651 INFO L225 Difference]: With dead ends: 118672 [2021-12-17 14:59:40,651 INFO L226 Difference]: Without dead ends: 118510 [2021-12-17 14:59:40,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2021-12-17 14:59:40,720 INFO L933 BasicCegarLoop]: 878 mSDtfsCounter, 2271 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 4471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:59:40,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2288 Valid, 2322 Invalid, 4471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 14:59:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118510 states.