./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product27.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 d732923830fb3a71ab6990fcf85b09499ea996afd0bf98e12e19d094dda2a9f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:40:03,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:40:03,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:40:03,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:40:03,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:40:03,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:40:03,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:40:03,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:40:03,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:40:03,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:40:03,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:40:03,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:40:03,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:40:03,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:40:03,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:40:03,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:40:03,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:40:03,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:40:03,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:40:03,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:40:03,289 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:40:03,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:40:03,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:40:03,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:40:03,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:40:03,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:40:03,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:40:03,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:40:03,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:40:03,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:40:03,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:40:03,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:40:03,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:40:03,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:40:03,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:40:03,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:40:03,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:40:03,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:40:03,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:40:03,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:40:03,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:40:03,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:40:03,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:40:03,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:40:03,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:40:03,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:40:03,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:40:03,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:40:03,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:40:03,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:40:03,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:40:03,347 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:40:03,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:40:03,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:40:03,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:40:03,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:40:03,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:40:03,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:40:03,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:40:03,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:40:03,349 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:40:03,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:40:03,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:40:03,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:40:03,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:40:03,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:40:03,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:40:03,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:40:03,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:40:03,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:40:03,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:40:03,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:40:03,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:40:03,353 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:40:03,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:40:03,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:40:03,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d732923830fb3a71ab6990fcf85b09499ea996afd0bf98e12e19d094dda2a9f7 [2022-07-13 17:40:03,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:40:03,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:40:03,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:40:03,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:40:03,647 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:40:03,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2022-07-13 17:40:03,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d4ee4ac/5a2b3232fe8945cc8fcb60e27fe9e763/FLAG2621fea3e [2022-07-13 17:40:04,252 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:40:04,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2022-07-13 17:40:04,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d4ee4ac/5a2b3232fe8945cc8fcb60e27fe9e763/FLAG2621fea3e [2022-07-13 17:40:04,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d4ee4ac/5a2b3232fe8945cc8fcb60e27fe9e763 [2022-07-13 17:40:04,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:40:04,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:40:04,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:40:04,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:40:04,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:40:04,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:40:04" (1/1) ... [2022-07-13 17:40:04,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdc518e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:04, skipping insertion in model container [2022-07-13 17:40:04,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:40:04" (1/1) ... [2022-07-13 17:40:04,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:40:04,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:40:05,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28349,28362] [2022-07-13 17:40:05,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:40:05,276 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:40:05,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28349,28362] [2022-07-13 17:40:05,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:40:05,387 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:40:05,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05 WrapperNode [2022-07-13 17:40:05,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:40:05,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:40:05,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:40:05,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:40:05,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,483 INFO L137 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1124 [2022-07-13 17:40:05,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:40:05,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:40:05,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:40:05,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:40:05,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:40:05,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:40:05,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:40:05,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:40:05,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (1/1) ... [2022-07-13 17:40:05,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:40:05,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:05,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 17:40:05,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 17:40:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-13 17:40:05,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-13 17:40:05,638 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-13 17:40:05,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-13 17:40:05,638 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-13 17:40:05,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-13 17:40:05,638 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-13 17:40:05,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-13 17:40:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-13 17:40:05,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-13 17:40:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-13 17:40:05,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-13 17:40:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-13 17:40:05,639 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-13 17:40:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-13 17:40:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-13 17:40:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-13 17:40:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-13 17:40:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-13 17:40:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-13 17:40:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-13 17:40:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-13 17:40:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-13 17:40:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-13 17:40:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-13 17:40:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:40:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-13 17:40:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-13 17:40:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-13 17:40:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-13 17:40:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-13 17:40:05,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-13 17:40:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-13 17:40:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-13 17:40:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-13 17:40:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-13 17:40:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-13 17:40:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-13 17:40:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-13 17:40:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-13 17:40:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-13 17:40:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-13 17:40:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:40:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-13 17:40:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-13 17:40:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-13 17:40:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-13 17:40:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:40:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:40:05,927 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:40:05,929 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:40:06,672 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:40:06,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:40:06,680 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 17:40:06,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:40:06 BoogieIcfgContainer [2022-07-13 17:40:06,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:40:06,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:40:06,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:40:06,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:40:06,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:40:04" (1/3) ... [2022-07-13 17:40:06,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ecec0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:40:06, skipping insertion in model container [2022-07-13 17:40:06,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:40:05" (2/3) ... [2022-07-13 17:40:06,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ecec0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:40:06, skipping insertion in model container [2022-07-13 17:40:06,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:40:06" (3/3) ... [2022-07-13 17:40:06,689 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product27.cil.c [2022-07-13 17:40:06,703 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:40:06,703 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:40:06,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:40:06,791 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6dcb4296, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1bdcbc8d [2022-07-13 17:40:06,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:40:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-07-13 17:40:06,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-13 17:40:06,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:06,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:06,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:06,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1492432018, now seen corresponding path program 1 times [2022-07-13 17:40:06,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:06,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655033350] [2022-07-13 17:40:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:06,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:40:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:40:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:40:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:40:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:40:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:40:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:40:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:40:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:40:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:40:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 17:40:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-13 17:40:07,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:07,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655033350] [2022-07-13 17:40:07,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655033350] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:40:07,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578979427] [2022-07-13 17:40:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:07,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:07,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:40:07,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:40:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:07,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 17:40:07,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:40:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 17:40:07,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:40:07,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578979427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:07,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:40:07,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-13 17:40:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597025638] [2022-07-13 17:40:07,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:07,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:40:07,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:07,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:40:07,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:40:07,583 INFO L87 Difference]: Start difference. First operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:07,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:07,638 INFO L93 Difference]: Finished difference Result 598 states and 904 transitions. [2022-07-13 17:40:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:40:07,649 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2022-07-13 17:40:07,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:07,661 INFO L225 Difference]: With dead ends: 598 [2022-07-13 17:40:07,661 INFO L226 Difference]: Without dead ends: 391 [2022-07-13 17:40:07,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:40:07,673 INFO L413 NwaCegarLoop]: 607 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, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:07,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:40:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-07-13 17:40:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2022-07-13 17:40:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 310 states have (on average 1.5612903225806452) internal successors, (484), 312 states have internal predecessors, (484), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-07-13 17:40:07,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 599 transitions. [2022-07-13 17:40:07,734 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 599 transitions. Word has length 117 [2022-07-13 17:40:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:07,735 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 599 transitions. [2022-07-13 17:40:07,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:07,736 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 599 transitions. [2022-07-13 17:40:07,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-13 17:40:07,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:07,741 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:07,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 17:40:07,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-13 17:40:07,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:07,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1520148354, now seen corresponding path program 1 times [2022-07-13 17:40:07,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:07,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804248787] [2022-07-13 17:40:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:07,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:40:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:40:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:40:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:40:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:40:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:40:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:40:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 17:40:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 17:40:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:40:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 17:40:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-13 17:40:08,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804248787] [2022-07-13 17:40:08,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804248787] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:40:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551880499] [2022-07-13 17:40:08,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:08,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:08,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:40:08,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 17:40:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 17:40:08,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:40:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 17:40:08,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:40:08,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551880499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:08,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:40:08,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-13 17:40:08,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602494722] [2022-07-13 17:40:08,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:08,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:40:08,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:08,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:40:08,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:40:08,537 INFO L87 Difference]: Start difference. First operand 391 states and 599 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:08,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:08,574 INFO L93 Difference]: Finished difference Result 588 states and 882 transitions. [2022-07-13 17:40:08,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:40:08,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-07-13 17:40:08,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:08,579 INFO L225 Difference]: With dead ends: 588 [2022-07-13 17:40:08,579 INFO L226 Difference]: Without dead ends: 394 [2022-07-13 17:40:08,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:40:08,581 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:08,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:40:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-07-13 17:40:08,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2022-07-13 17:40:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 312 states have (on average 1.5576923076923077) internal successors, (486), 314 states have internal predecessors, (486), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-07-13 17:40:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2022-07-13 17:40:08,605 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 118 [2022-07-13 17:40:08,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:08,605 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2022-07-13 17:40:08,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2022-07-13 17:40:08,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-13 17:40:08,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:08,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:08,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 17:40:08,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-13 17:40:08,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:08,842 INFO L85 PathProgramCache]: Analyzing trace with hash -771401481, now seen corresponding path program 1 times [2022-07-13 17:40:08,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:08,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148929984] [2022-07-13 17:40:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:08,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:40:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:40:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:40:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:40:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:40:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:40:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:40:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:40:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:40:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 17:40:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 17:40:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-13 17:40:09,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:09,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148929984] [2022-07-13 17:40:09,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148929984] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:40:09,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35369293] [2022-07-13 17:40:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:09,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:09,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:09,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:40:09,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 17:40:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:40:09,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:40:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 17:40:09,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:40:09,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35369293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:09,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:40:09,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-13 17:40:09,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292453571] [2022-07-13 17:40:09,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:09,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:40:09,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:09,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:40:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:40:09,296 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:09,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:09,350 INFO L93 Difference]: Finished difference Result 839 states and 1302 transitions. [2022-07-13 17:40:09,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:40:09,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2022-07-13 17:40:09,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:09,353 INFO L225 Difference]: With dead ends: 839 [2022-07-13 17:40:09,353 INFO L226 Difference]: Without dead ends: 473 [2022-07-13 17:40:09,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:40:09,355 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 142 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:09,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1171 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:40:09,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-07-13 17:40:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 465. [2022-07-13 17:40:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 370 states have (on average 1.5756756756756756) internal successors, (583), 372 states have internal predecessors, (583), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-13 17:40:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 726 transitions. [2022-07-13 17:40:09,378 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 726 transitions. Word has length 127 [2022-07-13 17:40:09,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:09,379 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 726 transitions. [2022-07-13 17:40:09,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 726 transitions. [2022-07-13 17:40:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-13 17:40:09,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:09,382 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:09,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 17:40:09,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:09,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash -708599889, now seen corresponding path program 1 times [2022-07-13 17:40:09,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:09,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543076183] [2022-07-13 17:40:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:40:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:40:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:40:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:40:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:40:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:40:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:40:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:40:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:40:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 17:40:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 17:40:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-13 17:40:09,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:09,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543076183] [2022-07-13 17:40:09,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543076183] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:40:09,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567916900] [2022-07-13 17:40:09,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:09,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:09,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:09,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:40:09,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 17:40:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:09,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 17:40:09,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:40:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 17:40:10,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:40:10,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567916900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:10,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:40:10,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-13 17:40:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775901084] [2022-07-13 17:40:10,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:10,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:40:10,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:10,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:40:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:40:10,060 INFO L87 Difference]: Start difference. First operand 465 states and 726 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:10,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:10,131 INFO L93 Difference]: Finished difference Result 921 states and 1442 transitions. [2022-07-13 17:40:10,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:40:10,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 128 [2022-07-13 17:40:10,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:10,135 INFO L225 Difference]: With dead ends: 921 [2022-07-13 17:40:10,135 INFO L226 Difference]: Without dead ends: 467 [2022-07-13 17:40:10,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:10,139 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:10,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:40:10,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-07-13 17:40:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-07-13 17:40:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 371 states have (on average 1.5741239892183287) internal successors, (584), 374 states have internal predecessors, (584), 72 states have call successors, (72), 22 states have call predecessors, (72), 23 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2022-07-13 17:40:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 729 transitions. [2022-07-13 17:40:10,178 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 729 transitions. Word has length 128 [2022-07-13 17:40:10,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:10,178 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 729 transitions. [2022-07-13 17:40:10,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 729 transitions. [2022-07-13 17:40:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-13 17:40:10,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:10,185 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:10,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 17:40:10,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:10,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:10,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:10,396 INFO L85 PathProgramCache]: Analyzing trace with hash -309218423, now seen corresponding path program 1 times [2022-07-13 17:40:10,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:10,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775901289] [2022-07-13 17:40:10,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:10,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-13 17:40:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:40:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:40:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:40:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:40:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:40:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:40:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-13 17:40:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-13 17:40:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:40:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 17:40:10,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:10,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775901289] [2022-07-13 17:40:10,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775901289] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:40:10,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460568845] [2022-07-13 17:40:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:10,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:10,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:10,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:40:10,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 17:40:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:10,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 17:40:10,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:40:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 17:40:10,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:40:10,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460568845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:10,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:40:10,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-13 17:40:10,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558135481] [2022-07-13 17:40:10,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:10,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:40:10,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:10,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:40:10,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-13 17:40:10,844 INFO L87 Difference]: Start difference. First operand 467 states and 729 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:10,905 INFO L93 Difference]: Finished difference Result 923 states and 1447 transitions. [2022-07-13 17:40:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:40:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 129 [2022-07-13 17:40:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:10,908 INFO L225 Difference]: With dead ends: 923 [2022-07-13 17:40:10,908 INFO L226 Difference]: Without dead ends: 469 [2022-07-13 17:40:10,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-13 17:40:10,910 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:10,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:40:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-13 17:40:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-07-13 17:40:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-07-13 17:40:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 735 transitions. [2022-07-13 17:40:10,933 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 735 transitions. Word has length 129 [2022-07-13 17:40:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:10,934 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 735 transitions. [2022-07-13 17:40:10,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:10,934 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 735 transitions. [2022-07-13 17:40:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-13 17:40:10,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:10,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:10,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 17:40:11,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:11,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1012137065, now seen corresponding path program 1 times [2022-07-13 17:40:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:11,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125090561] [2022-07-13 17:40:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:11,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:40:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:40:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:40:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:40:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 17:40:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:40:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:40:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 17:40:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 17:40:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-13 17:40:11,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:11,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125090561] [2022-07-13 17:40:11,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125090561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:11,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:11,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 17:40:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632967507] [2022-07-13 17:40:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:11,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 17:40:11,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:11,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 17:40:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:40:11,234 INFO L87 Difference]: Start difference. First operand 469 states and 735 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:13,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:13,169 INFO L93 Difference]: Finished difference Result 1131 states and 1797 transitions. [2022-07-13 17:40:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:40:13,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-07-13 17:40:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:13,173 INFO L225 Difference]: With dead ends: 1131 [2022-07-13 17:40:13,173 INFO L226 Difference]: Without dead ends: 685 [2022-07-13 17:40:13,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-13 17:40:13,175 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 1491 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:13,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1789 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:40:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-07-13 17:40:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 469. [2022-07-13 17:40:13,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2022-07-13 17:40:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 734 transitions. [2022-07-13 17:40:13,205 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 734 transitions. Word has length 130 [2022-07-13 17:40:13,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:13,206 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 734 transitions. [2022-07-13 17:40:13,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 734 transitions. [2022-07-13 17:40:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-13 17:40:13,207 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:13,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:13,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:40:13,208 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash -341190555, now seen corresponding path program 2 times [2022-07-13 17:40:13,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:13,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989885625] [2022-07-13 17:40:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:13,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:40:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:40:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:40:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:40:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:40:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 17:40:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:40:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-13 17:40:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 17:40:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-13 17:40:13,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:13,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989885625] [2022-07-13 17:40:13,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989885625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:13,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:13,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 17:40:13,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821304556] [2022-07-13 17:40:13,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:13,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 17:40:13,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:13,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 17:40:13,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:40:13,342 INFO L87 Difference]: Start difference. First operand 469 states and 734 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:15,225 INFO L93 Difference]: Finished difference Result 1133 states and 1800 transitions. [2022-07-13 17:40:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:40:15,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-07-13 17:40:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:15,229 INFO L225 Difference]: With dead ends: 1133 [2022-07-13 17:40:15,229 INFO L226 Difference]: Without dead ends: 687 [2022-07-13 17:40:15,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-13 17:40:15,230 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 1481 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:15,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1794 Invalid, 3269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:40:15,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2022-07-13 17:40:15,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 471. [2022-07-13 17:40:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2022-07-13 17:40:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2022-07-13 17:40:15,250 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 131 [2022-07-13 17:40:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:15,251 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2022-07-13 17:40:15,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-13 17:40:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2022-07-13 17:40:15,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-13 17:40:15,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:15,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:15,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 17:40:15,253 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1986501820, now seen corresponding path program 1 times [2022-07-13 17:40:15,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:15,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818059806] [2022-07-13 17:40:15,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:15,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:40:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:40:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:40:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 17:40:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:40:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:40:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 17:40:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 17:40:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 17:40:15,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:15,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818059806] [2022-07-13 17:40:15,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818059806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:15,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:15,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 17:40:15,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381789367] [2022-07-13 17:40:15,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:15,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:40:15,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:15,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:40:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:40:15,378 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 17:40:17,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:17,805 INFO L93 Difference]: Finished difference Result 1131 states and 1795 transitions. [2022-07-13 17:40:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 17:40:17,806 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 132 [2022-07-13 17:40:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:17,811 INFO L225 Difference]: With dead ends: 1131 [2022-07-13 17:40:17,811 INFO L226 Difference]: Without dead ends: 687 [2022-07-13 17:40:17,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-13 17:40:17,813 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1631 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 5429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 4800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:17,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 2167 Invalid, 5429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 17:40:17,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2022-07-13 17:40:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 471. [2022-07-13 17:40:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-07-13 17:40:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2022-07-13 17:40:17,834 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 132 [2022-07-13 17:40:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:17,834 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2022-07-13 17:40:17,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 17:40:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2022-07-13 17:40:17,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-13 17:40:17,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:17,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:17,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 17:40:17,837 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:17,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:17,837 INFO L85 PathProgramCache]: Analyzing trace with hash -790395096, now seen corresponding path program 2 times [2022-07-13 17:40:17,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:17,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066151873] [2022-07-13 17:40:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:17,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:40:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:40:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:40:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:40:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:40:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:40:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 17:40:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 17:40:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 17:40:17,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:17,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066151873] [2022-07-13 17:40:17,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066151873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:17,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:17,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 17:40:17,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639132450] [2022-07-13 17:40:17,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:17,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:40:17,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:17,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:40:17,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:40:17,987 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 17:40:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:20,354 INFO L93 Difference]: Finished difference Result 1133 states and 1801 transitions. [2022-07-13 17:40:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 17:40:20,355 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 133 [2022-07-13 17:40:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:20,358 INFO L225 Difference]: With dead ends: 1133 [2022-07-13 17:40:20,358 INFO L226 Difference]: Without dead ends: 689 [2022-07-13 17:40:20,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-13 17:40:20,359 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1628 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4818 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 5441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 4818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:20,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 2167 Invalid, 5441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 4818 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 17:40:20,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-07-13 17:40:20,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 473. [2022-07-13 17:40:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 374 states have (on average 1.5695187165775402) internal successors, (587), 380 states have internal predecessors, (587), 72 states have call successors, (72), 22 states have call predecessors, (72), 26 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-07-13 17:40:20,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 742 transitions. [2022-07-13 17:40:20,379 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 742 transitions. Word has length 133 [2022-07-13 17:40:20,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:20,380 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 742 transitions. [2022-07-13 17:40:20,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 17:40:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 742 transitions. [2022-07-13 17:40:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 17:40:20,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:20,382 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:20,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 17:40:20,382 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1968101537, now seen corresponding path program 1 times [2022-07-13 17:40:20,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:20,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659119609] [2022-07-13 17:40:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:40:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:40:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:40:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:40:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:40:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:40:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 17:40:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-13 17:40:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,501 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:40:20,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:20,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659119609] [2022-07-13 17:40:20,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659119609] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:40:20,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100533130] [2022-07-13 17:40:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:20,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:20,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:40:20,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:40:20,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 17:40:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:20,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:40:20,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:40:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:20,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:40:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:20,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100533130] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:40:20,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:40:20,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-13 17:40:20,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268944940] [2022-07-13 17:40:20,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:40:20,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 17:40:20,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:20,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 17:40:20,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-13 17:40:20,847 INFO L87 Difference]: Start difference. First operand 473 states and 742 transitions. Second operand has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 17:40:24,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:24,356 INFO L93 Difference]: Finished difference Result 2042 states and 3439 transitions. [2022-07-13 17:40:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 17:40:24,357 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 134 [2022-07-13 17:40:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:24,363 INFO L225 Difference]: With dead ends: 2042 [2022-07-13 17:40:24,363 INFO L226 Difference]: Without dead ends: 1600 [2022-07-13 17:40:24,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-13 17:40:24,376 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 4300 mSDsluCounter, 3502 mSDsCounter, 0 mSdLazyCounter, 6342 mSolverCounterSat, 1628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4302 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 7970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1628 IncrementalHoareTripleChecker+Valid, 6342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:24,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4302 Valid, 4471 Invalid, 7970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1628 Valid, 6342 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-13 17:40:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-07-13 17:40:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 916. [2022-07-13 17:40:24,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 738 states have (on average 1.6165311653116532) internal successors, (1193), 744 states have internal predecessors, (1193), 151 states have call successors, (151), 22 states have call predecessors, (151), 26 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2022-07-13 17:40:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1516 transitions. [2022-07-13 17:40:24,433 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1516 transitions. Word has length 134 [2022-07-13 17:40:24,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:24,433 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1516 transitions. [2022-07-13 17:40:24,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 17:40:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1516 transitions. [2022-07-13 17:40:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-13 17:40:24,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:24,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:24,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 17:40:24,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:40:24,648 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2004901888, now seen corresponding path program 1 times [2022-07-13 17:40:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:24,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222376632] [2022-07-13 17:40:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:40:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:40:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:40:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 17:40:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:40:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 17:40:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 17:40:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-13 17:40:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:24,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222376632] [2022-07-13 17:40:24,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222376632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:24,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:24,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:24,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492870887] [2022-07-13 17:40:24,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:24,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:24,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:24,731 INFO L87 Difference]: Start difference. First operand 916 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:26,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:26,141 INFO L93 Difference]: Finished difference Result 2393 states and 4047 transitions. [2022-07-13 17:40:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-07-13 17:40:26,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:26,147 INFO L225 Difference]: With dead ends: 2393 [2022-07-13 17:40:26,147 INFO L226 Difference]: Without dead ends: 1555 [2022-07-13 17:40:26,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:26,150 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 1481 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:26,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1618 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:26,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-07-13 17:40:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1331. [2022-07-13 17:40:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1074 states have (on average 1.632216014897579) internal successors, (1753), 1080 states have internal predecessors, (1753), 230 states have call successors, (230), 22 states have call predecessors, (230), 26 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2022-07-13 17:40:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2244 transitions. [2022-07-13 17:40:26,208 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2244 transitions. Word has length 137 [2022-07-13 17:40:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:26,208 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 2244 transitions. [2022-07-13 17:40:26,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2244 transitions. [2022-07-13 17:40:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-13 17:40:26,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:26,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:26,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 17:40:26,213 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash -606107813, now seen corresponding path program 1 times [2022-07-13 17:40:26,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:26,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142188740] [2022-07-13 17:40:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:26,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:40:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 17:40:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:40:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:40:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:40:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-13 17:40:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 17:40:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 17:40:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:26,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:26,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142188740] [2022-07-13 17:40:26,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142188740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:26,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:26,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:26,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175974565] [2022-07-13 17:40:26,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:26,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:26,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:26,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:26,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:26,276 INFO L87 Difference]: Start difference. First operand 1331 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:27,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:27,680 INFO L93 Difference]: Finished difference Result 3432 states and 5860 transitions. [2022-07-13 17:40:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:27,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-07-13 17:40:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:27,688 INFO L225 Difference]: With dead ends: 3432 [2022-07-13 17:40:27,688 INFO L226 Difference]: Without dead ends: 2232 [2022-07-13 17:40:27,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:27,692 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 1479 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:27,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1593 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-07-13 17:40:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2008. [2022-07-13 17:40:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1632 states have (on average 1.639093137254902) internal successors, (2675), 1638 states have internal predecessors, (2675), 349 states have call successors, (349), 22 states have call predecessors, (349), 26 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2022-07-13 17:40:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 3404 transitions. [2022-07-13 17:40:27,815 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 3404 transitions. Word has length 138 [2022-07-13 17:40:27,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:27,816 INFO L495 AbstractCegarLoop]: Abstraction has 2008 states and 3404 transitions. [2022-07-13 17:40:27,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 3404 transitions. [2022-07-13 17:40:27,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-13 17:40:27,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:27,823 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:27,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 17:40:27,824 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:27,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:27,824 INFO L85 PathProgramCache]: Analyzing trace with hash -591817810, now seen corresponding path program 1 times [2022-07-13 17:40:27,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:27,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129626540] [2022-07-13 17:40:27,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:27,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:40:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 17:40:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:40:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:40:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:40:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 17:40:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 17:40:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 17:40:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:27,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:27,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129626540] [2022-07-13 17:40:27,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129626540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:27,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:27,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558134523] [2022-07-13 17:40:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:27,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:27,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:27,904 INFO L87 Difference]: Start difference. First operand 2008 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:29,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:29,338 INFO L93 Difference]: Finished difference Result 5017 states and 8639 transitions. [2022-07-13 17:40:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:29,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-07-13 17:40:29,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:29,351 INFO L225 Difference]: With dead ends: 5017 [2022-07-13 17:40:29,351 INFO L226 Difference]: Without dead ends: 3275 [2022-07-13 17:40:29,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:29,356 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 1475 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:29,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1592 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2022-07-13 17:40:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3051. [2022-07-13 17:40:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 2513 states have (on average 1.6446478312773578) internal successors, (4133), 2519 states have internal predecessors, (4133), 511 states have call successors, (511), 22 states have call predecessors, (511), 26 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2022-07-13 17:40:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 5202 transitions. [2022-07-13 17:40:29,487 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 5202 transitions. Word has length 139 [2022-07-13 17:40:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:29,487 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 5202 transitions. [2022-07-13 17:40:29,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 5202 transitions. [2022-07-13 17:40:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-13 17:40:29,511 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:29,511 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:29,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 17:40:29,512 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:29,512 INFO L85 PathProgramCache]: Analyzing trace with hash -824094244, now seen corresponding path program 1 times [2022-07-13 17:40:29,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:29,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480139449] [2022-07-13 17:40:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:29,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:40:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:40:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:40:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:40:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:40:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 17:40:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-13 17:40:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 17:40:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:29,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:29,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480139449] [2022-07-13 17:40:29,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480139449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:29,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:29,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149426349] [2022-07-13 17:40:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:29,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:29,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:29,577 INFO L87 Difference]: Start difference. First operand 3051 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:31,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:31,054 INFO L93 Difference]: Finished difference Result 7531 states and 13054 transitions. [2022-07-13 17:40:31,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:31,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2022-07-13 17:40:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:31,075 INFO L225 Difference]: With dead ends: 7531 [2022-07-13 17:40:31,075 INFO L226 Difference]: Without dead ends: 4965 [2022-07-13 17:40:31,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:31,082 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 1472 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:31,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1590 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:31,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2022-07-13 17:40:31,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 4741. [2022-07-13 17:40:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 3958 states have (on average 1.6485598787266296) internal successors, (6525), 3964 states have internal predecessors, (6525), 756 states have call successors, (756), 22 states have call predecessors, (756), 26 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2022-07-13 17:40:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 8110 transitions. [2022-07-13 17:40:31,301 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 8110 transitions. Word has length 140 [2022-07-13 17:40:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:31,301 INFO L495 AbstractCegarLoop]: Abstraction has 4741 states and 8110 transitions. [2022-07-13 17:40:31,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 8110 transitions. [2022-07-13 17:40:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-13 17:40:31,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:31,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:31,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 17:40:31,314 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:31,314 INFO L85 PathProgramCache]: Analyzing trace with hash 953962378, now seen corresponding path program 1 times [2022-07-13 17:40:31,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:31,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458715303] [2022-07-13 17:40:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:31,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:40:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:40:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 17:40:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-13 17:40:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 17:40:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:40:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 17:40:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 17:40:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:31,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:31,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458715303] [2022-07-13 17:40:31,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458715303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:31,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:31,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207594656] [2022-07-13 17:40:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:31,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:31,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:31,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:31,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:31,379 INFO L87 Difference]: Start difference. First operand 4741 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:33,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:33,008 INFO L93 Difference]: Finished difference Result 11732 states and 20431 transitions. [2022-07-13 17:40:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:33,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2022-07-13 17:40:33,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:33,043 INFO L225 Difference]: With dead ends: 11732 [2022-07-13 17:40:33,044 INFO L226 Difference]: Without dead ends: 7808 [2022-07-13 17:40:33,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:33,053 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 1468 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:33,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1637 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-07-13 17:40:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7584. [2022-07-13 17:40:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 6308 states have (on average 1.6461636017755232) internal successors, (10384), 6314 states have internal predecessors, (10384), 1249 states have call successors, (1249), 22 states have call predecessors, (1249), 26 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2022-07-13 17:40:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 12999 transitions. [2022-07-13 17:40:33,458 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 12999 transitions. Word has length 141 [2022-07-13 17:40:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:33,458 INFO L495 AbstractCegarLoop]: Abstraction has 7584 states and 12999 transitions. [2022-07-13 17:40:33,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:33,459 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 12999 transitions. [2022-07-13 17:40:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-13 17:40:33,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:33,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:33,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 17:40:33,481 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1360059904, now seen corresponding path program 1 times [2022-07-13 17:40:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:33,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910882163] [2022-07-13 17:40:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:33,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:40:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:40:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:40:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:40:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-13 17:40:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-13 17:40:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:40:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-13 17:40:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:33,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:33,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910882163] [2022-07-13 17:40:33,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910882163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:33,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:33,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:33,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147231899] [2022-07-13 17:40:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:33,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:33,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:33,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:33,558 INFO L87 Difference]: Start difference. First operand 7584 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:35,324 INFO L93 Difference]: Finished difference Result 19347 states and 33707 transitions. [2022-07-13 17:40:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:35,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2022-07-13 17:40:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:35,365 INFO L225 Difference]: With dead ends: 19347 [2022-07-13 17:40:35,365 INFO L226 Difference]: Without dead ends: 12982 [2022-07-13 17:40:35,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:35,383 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 1466 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:35,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1603 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:35,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12982 states. [2022-07-13 17:40:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12982 to 12758. [2022-07-13 17:40:35,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12758 states, 10660 states have (on average 1.6460600375234522) internal successors, (17547), 10666 states have internal predecessors, (17547), 2071 states have call successors, (2071), 22 states have call predecessors, (2071), 26 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2022-07-13 17:40:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12758 states to 12758 states and 21884 transitions. [2022-07-13 17:40:36,015 INFO L78 Accepts]: Start accepts. Automaton has 12758 states and 21884 transitions. Word has length 142 [2022-07-13 17:40:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:36,015 INFO L495 AbstractCegarLoop]: Abstraction has 12758 states and 21884 transitions. [2022-07-13 17:40:36,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 12758 states and 21884 transitions. [2022-07-13 17:40:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-13 17:40:36,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:36,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:36,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 17:40:36,046 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:36,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:36,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1831304600, now seen corresponding path program 1 times [2022-07-13 17:40:36,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:36,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551838692] [2022-07-13 17:40:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 17:40:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:40:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 17:40:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:40:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 17:40:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 17:40:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-13 17:40:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-13 17:40:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:36,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:36,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551838692] [2022-07-13 17:40:36,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551838692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:36,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:36,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:36,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520822124] [2022-07-13 17:40:36,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:36,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:36,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:36,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:36,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:36,183 INFO L87 Difference]: Start difference. First operand 12758 states and 21884 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:38,252 INFO L93 Difference]: Finished difference Result 30830 states and 53407 transitions. [2022-07-13 17:40:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:38,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 143 [2022-07-13 17:40:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:38,319 INFO L225 Difference]: With dead ends: 30830 [2022-07-13 17:40:38,320 INFO L226 Difference]: Without dead ends: 20295 [2022-07-13 17:40:38,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:38,353 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 1464 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:38,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1571 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20295 states. [2022-07-13 17:40:39,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20295 to 20071. [2022-07-13 17:40:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20071 states, 16770 states have (on average 1.621526535480024) internal successors, (27193), 16776 states have internal predecessors, (27193), 3274 states have call successors, (3274), 22 states have call predecessors, (3274), 26 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2022-07-13 17:40:39,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20071 states to 20071 states and 34080 transitions. [2022-07-13 17:40:39,425 INFO L78 Accepts]: Start accepts. Automaton has 20071 states and 34080 transitions. Word has length 143 [2022-07-13 17:40:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:39,425 INFO L495 AbstractCegarLoop]: Abstraction has 20071 states and 34080 transitions. [2022-07-13 17:40:39,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 20071 states and 34080 transitions. [2022-07-13 17:40:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-13 17:40:39,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:39,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:39,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 17:40:39,452 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:39,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash -817608287, now seen corresponding path program 1 times [2022-07-13 17:40:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:39,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264600264] [2022-07-13 17:40:39,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:39,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 17:40:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:40:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:40:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:40:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-13 17:40:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 17:40:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 17:40:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-13 17:40:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:39,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:39,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264600264] [2022-07-13 17:40:39,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264600264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:39,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:39,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:39,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149022659] [2022-07-13 17:40:39,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:39,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:39,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:39,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:39,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:39,541 INFO L87 Difference]: Start difference. First operand 20071 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:42,296 INFO L93 Difference]: Finished difference Result 53272 states and 91941 transitions. [2022-07-13 17:40:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:42,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 144 [2022-07-13 17:40:42,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:42,427 INFO L225 Difference]: With dead ends: 53272 [2022-07-13 17:40:42,427 INFO L226 Difference]: Without dead ends: 36101 [2022-07-13 17:40:42,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:42,482 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 1467 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:42,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1591 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36101 states. [2022-07-13 17:40:44,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36101 to 35877. [2022-07-13 17:40:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35877 states, 30126 states have (on average 1.618369514704906) internal successors, (48755), 30132 states have internal predecessors, (48755), 5724 states have call successors, (5724), 22 states have call predecessors, (5724), 26 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2022-07-13 17:40:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35877 states to 35877 states and 60816 transitions. [2022-07-13 17:40:44,313 INFO L78 Accepts]: Start accepts. Automaton has 35877 states and 60816 transitions. Word has length 144 [2022-07-13 17:40:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:44,313 INFO L495 AbstractCegarLoop]: Abstraction has 35877 states and 60816 transitions. [2022-07-13 17:40:44,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 35877 states and 60816 transitions. [2022-07-13 17:40:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-13 17:40:44,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:44,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:44,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 17:40:44,347 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1064669742, now seen corresponding path program 1 times [2022-07-13 17:40:44,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:44,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340540907] [2022-07-13 17:40:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:40:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:40:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:40:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:40:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 17:40:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-13 17:40:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 17:40:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-13 17:40:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:44,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:44,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340540907] [2022-07-13 17:40:44,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340540907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:44,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:44,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:44,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693845137] [2022-07-13 17:40:44,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:44,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:44,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:44,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:44,420 INFO L87 Difference]: Start difference. First operand 35877 states and 60816 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:48,340 INFO L93 Difference]: Finished difference Result 98119 states and 168500 transitions. [2022-07-13 17:40:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 145 [2022-07-13 17:40:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:48,535 INFO L225 Difference]: With dead ends: 98119 [2022-07-13 17:40:48,535 INFO L226 Difference]: Without dead ends: 66098 [2022-07-13 17:40:48,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:48,596 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 1463 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:48,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1600 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:48,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66098 states. [2022-07-13 17:40:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66098 to 65874. [2022-07-13 17:40:51,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65874 states, 55610 states have (on average 1.614242042798058) internal successors, (89768), 55616 states have internal predecessors, (89768), 10237 states have call successors, (10237), 22 states have call predecessors, (10237), 26 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2022-07-13 17:40:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65874 states to 65874 states and 111387 transitions. [2022-07-13 17:40:52,086 INFO L78 Accepts]: Start accepts. Automaton has 65874 states and 111387 transitions. Word has length 145 [2022-07-13 17:40:52,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:40:52,086 INFO L495 AbstractCegarLoop]: Abstraction has 65874 states and 111387 transitions. [2022-07-13 17:40:52,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 65874 states and 111387 transitions. [2022-07-13 17:40:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-13 17:40:52,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:40:52,132 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:40:52,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 17:40:52,133 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:40:52,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:40:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash 867270177, now seen corresponding path program 1 times [2022-07-13 17:40:52,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:40:52,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669035146] [2022-07-13 17:40:52,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:40:52,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:40:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:40:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:40:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:40:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:40:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:40:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:40:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:40:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:40:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:40:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:40:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 17:40:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 17:40:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 17:40:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 17:40:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:40:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:40:52,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:40:52,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669035146] [2022-07-13 17:40:52,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669035146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:40:52,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:40:52,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:40:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558047620] [2022-07-13 17:40:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:40:52,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:40:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:40:52,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:40:52,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:40:52,207 INFO L87 Difference]: Start difference. First operand 65874 states and 111387 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:40:57,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:40:57,929 INFO L93 Difference]: Finished difference Result 123780 states and 212933 transitions. [2022-07-13 17:40:57,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:40:57,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 146 [2022-07-13 17:40:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:40:58,530 INFO L225 Difference]: With dead ends: 123780 [2022-07-13 17:40:58,530 INFO L226 Difference]: Without dead ends: 123586 [2022-07-13 17:40:58,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:40:58,576 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 1460 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:40:58,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1597 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:40:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123586 states. [2022-07-13 17:41:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123586 to 123362. [2022-07-13 17:41:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123362 states, 104730 states have (on average 1.6090900410579585) internal successors, (168520), 104736 states have internal predecessors, (168520), 18605 states have call successors, (18605), 22 states have call predecessors, (18605), 26 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2022-07-13 17:41:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123362 states to 123362 states and 207921 transitions. [2022-07-13 17:41:04,671 INFO L78 Accepts]: Start accepts. Automaton has 123362 states and 207921 transitions. Word has length 146 [2022-07-13 17:41:04,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:04,671 INFO L495 AbstractCegarLoop]: Abstraction has 123362 states and 207921 transitions. [2022-07-13 17:41:04,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 17:41:04,672 INFO L276 IsEmpty]: Start isEmpty. Operand 123362 states and 207921 transitions. [2022-07-13 17:41:04,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-13 17:41:04,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:04,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:04,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 17:41:04,726 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:04,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:04,726 INFO L85 PathProgramCache]: Analyzing trace with hash 383494833, now seen corresponding path program 1 times [2022-07-13 17:41:04,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:04,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883933431] [2022-07-13 17:41:04,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:04,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:41:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:41:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:41:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:41:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:41:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:41:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 17:41:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:41:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-13 17:41:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 17:41:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:41:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 17:41:04,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:04,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883933431] [2022-07-13 17:41:04,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883933431] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:04,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260417761] [2022-07-13 17:41:04,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:04,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:04,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:04,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:41:04,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 17:41:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:05,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 17:41:05,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 17:41:05,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:41:05,391 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-13 17:41:05,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260417761] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:41:05,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:41:05,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2022-07-13 17:41:05,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926691705] [2022-07-13 17:41:05,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:41:05,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-13 17:41:05,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:05,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-13 17:41:05,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:41:05,393 INFO L87 Difference]: Start difference. First operand 123362 states and 207921 transitions. Second operand has 21 states, 21 states have (on average 11.19047619047619) internal successors, (235), 16 states have internal predecessors, (235), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2022-07-13 17:41:20,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:20,175 INFO L93 Difference]: Finished difference Result 247402 states and 427881 transitions. [2022-07-13 17:41:20,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-07-13 17:41:20,176 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.19047619047619) internal successors, (235), 16 states have internal predecessors, (235), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) Word has length 147 [2022-07-13 17:41:20,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:21,381 INFO L225 Difference]: With dead ends: 247402 [2022-07-13 17:41:21,381 INFO L226 Difference]: Without dead ends: 247214 [2022-07-13 17:41:21,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=767, Invalid=3265, Unknown=0, NotChecked=0, Total=4032 [2022-07-13 17:41:21,486 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 3961 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 10496 mSolverCounterSat, 1812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 12308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1812 IncrementalHoareTripleChecker+Valid, 10496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:21,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3976 Valid, 3786 Invalid, 12308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1812 Valid, 10496 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-13 17:41:21,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247214 states.