./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec11_product40.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 3d6b4da8bd47478af9a0348a2f21d8475ccd8463dda8c629c98551dc6b564226 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:47:45,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:47:45,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:47:45,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:47:45,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:47:45,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:47:45,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:47:45,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:47:45,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:47:45,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:47:45,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:47:45,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:47:45,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:47:45,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:47:45,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:47:45,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:47:45,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:47:45,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:47:45,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:47:45,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:47:45,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:47:45,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:47:45,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:47:45,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:47:45,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:47:45,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:47:45,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:47:45,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:47:45,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:47:45,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:47:45,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:47:45,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:47:45,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:47:45,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:47:45,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:47:45,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:47:45,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:47:45,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:47:45,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:47:45,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:47:45,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:47:45,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:47:45,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:47:45,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:47:45,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:47:45,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:47:45,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:47:45,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:47:45,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:47:45,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:47:45,552 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:47:45,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:47:45,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:47:45,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:47:45,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:47:45,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:47:45,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:47:45,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:47:45,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:47:45,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:47:45,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:47:45,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:47:45,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:47:45,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:47:45,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:47:45,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:47:45,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:47:45,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:47:45,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:47:45,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:47:45,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:47:45,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:47:45,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:47:45,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:47:45,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:47:45,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:47:45,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d6b4da8bd47478af9a0348a2f21d8475ccd8463dda8c629c98551dc6b564226 [2021-12-16 00:47:45,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:47:45,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:47:45,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:47:45,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:47:45,752 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:47:45,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product40.cil.c [2021-12-16 00:47:45,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d7ba52a/bed5c2c958454a56b9f44a79f138108d/FLAGcfba1daec [2021-12-16 00:47:46,237 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:47:46,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c [2021-12-16 00:47:46,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d7ba52a/bed5c2c958454a56b9f44a79f138108d/FLAGcfba1daec [2021-12-16 00:47:46,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d7ba52a/bed5c2c958454a56b9f44a79f138108d [2021-12-16 00:47:46,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:47:46,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:47:46,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:47:46,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:47:46,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:47:46,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:47:46" (1/1) ... [2021-12-16 00:47:46,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a84f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:46, skipping insertion in model container [2021-12-16 00:47:46,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:47:46" (1/1) ... [2021-12-16 00:47:46,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:47:46,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:47:46,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c[8480,8493] [2021-12-16 00:47:47,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:47:47,123 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:47:47,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product40.cil.c[8480,8493] [2021-12-16 00:47:47,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:47:47,200 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:47:47,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47 WrapperNode [2021-12-16 00:47:47,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:47:47,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:47:47,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:47:47,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:47:47,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,290 INFO L137 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 910 [2021-12-16 00:47:47,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:47:47,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:47:47,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:47:47,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:47:47,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:47:47,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:47:47,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:47:47,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:47:47,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (1/1) ... [2021-12-16 00:47:47,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:47:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:47,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 00:47:47,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 00:47:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-16 00:47:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-16 00:47:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-16 00:47:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-16 00:47:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-16 00:47:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-16 00:47:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-16 00:47:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-16 00:47:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-16 00:47:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-16 00:47:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-16 00:47:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-16 00:47:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-16 00:47:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-16 00:47:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-16 00:47:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-16 00:47:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-16 00:47:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-16 00:47:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-16 00:47:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-16 00:47:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-16 00:47:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-16 00:47:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-16 00:47:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:47:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-16 00:47:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-16 00:47:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-16 00:47:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-16 00:47:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-16 00:47:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-16 00:47:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-16 00:47:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-16 00:47:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-16 00:47:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-16 00:47:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-16 00:47:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-16 00:47:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-16 00:47:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-16 00:47:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:47:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-16 00:47:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-16 00:47:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-16 00:47:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-16 00:47:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:47:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:47:47,576 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:47:47,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:47:48,145 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:47:48,152 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:47:48,152 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 00:47:48,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:47:48 BoogieIcfgContainer [2021-12-16 00:47:48,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:47:48,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:47:48,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:47:48,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:47:48,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:47:46" (1/3) ... [2021-12-16 00:47:48,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3f754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:47:48, skipping insertion in model container [2021-12-16 00:47:48,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:47:47" (2/3) ... [2021-12-16 00:47:48,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3f754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:47:48, skipping insertion in model container [2021-12-16 00:47:48,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:47:48" (3/3) ... [2021-12-16 00:47:48,159 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product40.cil.c [2021-12-16 00:47:48,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:47:48,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:47:48,195 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:47:48,199 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 00:47:48,200 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:47:48,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 262 states have (on average 1.5648854961832062) internal successors, (410), 265 states have internal predecessors, (410), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-16 00:47:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-16 00:47:48,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:48,240 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:48,241 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:48,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1136129709, now seen corresponding path program 1 times [2021-12-16 00:47:48,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:48,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902004483] [2021-12-16 00:47:48,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:48,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:47:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:47:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:47:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 00:47:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 00:47:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:47:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:47:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:47:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:47:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:47:48,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:48,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902004483] [2021-12-16 00:47:48,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902004483] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:47:48,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143463366] [2021-12-16 00:47:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:48,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:48,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:48,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:47:48,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 00:47:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:48,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-16 00:47:48,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:47:49,092 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:47:49,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:47:49,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143463366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:49,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:47:49,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-16 00:47:49,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953216728] [2021-12-16 00:47:49,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:49,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 00:47:49,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:49,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 00:47:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:47:49,119 INFO L87 Difference]: Start difference. First operand has 336 states, 262 states have (on average 1.5648854961832062) internal successors, (410), 265 states have internal predecessors, (410), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:47:49,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:49,159 INFO L93 Difference]: Finished difference Result 474 states and 710 transitions. [2021-12-16 00:47:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 00:47:49,161 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2021-12-16 00:47:49,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:49,171 INFO L225 Difference]: With dead ends: 474 [2021-12-16 00:47:49,171 INFO L226 Difference]: Without dead ends: 329 [2021-12-16 00:47:49,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:47:49,178 INFO L933 BasicCegarLoop]: 510 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, 510 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:49,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:47:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-12-16 00:47:49,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2021-12-16 00:47:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 256 states have (on average 1.55859375) internal successors, (399), 258 states have internal predecessors, (399), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-16 00:47:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 502 transitions. [2021-12-16 00:47:49,227 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 502 transitions. Word has length 96 [2021-12-16 00:47:49,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:49,228 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 502 transitions. [2021-12-16 00:47:49,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:47:49,229 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 502 transitions. [2021-12-16 00:47:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-16 00:47:49,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:49,234 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:49,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 00:47:49,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-16 00:47:49,448 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1550937581, now seen corresponding path program 1 times [2021-12-16 00:47:49,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:49,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188977718] [2021-12-16 00:47:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:49,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:47:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:47:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:47:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 00:47:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 00:47:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:47:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:47:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:47:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:47:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:47:49,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:49,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188977718] [2021-12-16 00:47:49,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188977718] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:47:49,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105701764] [2021-12-16 00:47:49,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:49,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:49,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:49,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:47:49,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 00:47:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:49,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 00:47:49,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:47:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:47:49,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:47:49,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105701764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:49,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:47:49,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:47:49,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251264689] [2021-12-16 00:47:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:49,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:47:49,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:49,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:47:49,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:47:49,971 INFO L87 Difference]: Start difference. First operand 329 states and 502 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:47:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:50,002 INFO L93 Difference]: Finished difference Result 464 states and 688 transitions. [2021-12-16 00:47:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:47:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2021-12-16 00:47:50,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:50,006 INFO L225 Difference]: With dead ends: 464 [2021-12-16 00:47:50,006 INFO L226 Difference]: Without dead ends: 332 [2021-12-16 00:47:50,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:47:50,008 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 1 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:50,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 998 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:47:50,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-12-16 00:47:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2021-12-16 00:47:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 258 states have (on average 1.554263565891473) internal successors, (401), 260 states have internal predecessors, (401), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-16 00:47:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 504 transitions. [2021-12-16 00:47:50,028 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 504 transitions. Word has length 97 [2021-12-16 00:47:50,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:50,028 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 504 transitions. [2021-12-16 00:47:50,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:47:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 504 transitions. [2021-12-16 00:47:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-16 00:47:50,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:50,032 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:50,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 00:47:50,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-16 00:47:50,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:50,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:50,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1838084950, now seen corresponding path program 1 times [2021-12-16 00:47:50,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:50,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122615096] [2021-12-16 00:47:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:50,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:47:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:47:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:47:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 00:47:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:47:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:47:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:47:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:47:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:47:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:47:50,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:50,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122615096] [2021-12-16 00:47:50,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122615096] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:47:50,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001376781] [2021-12-16 00:47:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:50,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:50,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:50,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:47:50,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 00:47:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:50,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:47:50,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:47:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:47:50,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:47:50,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001376781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:50,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:47:50,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:47:50,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229587852] [2021-12-16 00:47:50,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:50,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:47:50,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:50,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:47:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:47:50,773 INFO L87 Difference]: Start difference. First operand 331 states and 504 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:47:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:50,832 INFO L93 Difference]: Finished difference Result 715 states and 1108 transitions. [2021-12-16 00:47:50,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:47:50,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2021-12-16 00:47:50,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:50,839 INFO L225 Difference]: With dead ends: 715 [2021-12-16 00:47:50,840 INFO L226 Difference]: Without dead ends: 411 [2021-12-16 00:47:50,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:47:50,845 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 142 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:50,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 977 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:47:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-12-16 00:47:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 403. [2021-12-16 00:47:50,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 316 states have (on average 1.5759493670886076) internal successors, (498), 318 states have internal predecessors, (498), 66 states have call successors, (66), 20 states have call predecessors, (66), 20 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-16 00:47:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 629 transitions. [2021-12-16 00:47:50,892 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 629 transitions. Word has length 106 [2021-12-16 00:47:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:50,894 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 629 transitions. [2021-12-16 00:47:50,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:47:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 629 transitions. [2021-12-16 00:47:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-16 00:47:50,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:50,900 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:50,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-16 00:47:51,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:51,119 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:51,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:51,120 INFO L85 PathProgramCache]: Analyzing trace with hash -722719930, now seen corresponding path program 1 times [2021-12-16 00:47:51,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:51,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439434778] [2021-12-16 00:47:51,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:51,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:47:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:47:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:47:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 00:47:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 00:47:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:47:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:47:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:47:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:47:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,249 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:47:51,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:51,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439434778] [2021-12-16 00:47:51,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439434778] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:47:51,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586553056] [2021-12-16 00:47:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:51,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:51,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:51,263 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:47:51,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 00:47:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:51,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 00:47:51,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:47:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 00:47:51,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:47:51,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586553056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:51,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:47:51,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-16 00:47:51,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367625365] [2021-12-16 00:47:51,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:51,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:47:51,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:51,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:47:51,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:47:51,651 INFO L87 Difference]: Start difference. First operand 403 states and 629 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:51,694 INFO L93 Difference]: Finished difference Result 797 states and 1248 transitions. [2021-12-16 00:47:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:47:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2021-12-16 00:47:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:51,697 INFO L225 Difference]: With dead ends: 797 [2021-12-16 00:47:51,697 INFO L226 Difference]: Without dead ends: 405 [2021-12-16 00:47:51,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:47:51,699 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 160 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:51,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1790 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:47:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-12-16 00:47:51,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2021-12-16 00:47:51,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 317 states have (on average 1.5741324921135647) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 20 states have call predecessors, (66), 21 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2021-12-16 00:47:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 632 transitions. [2021-12-16 00:47:51,733 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 632 transitions. Word has length 107 [2021-12-16 00:47:51,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:51,733 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 632 transitions. [2021-12-16 00:47:51,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 632 transitions. [2021-12-16 00:47:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-16 00:47:51,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:51,735 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:51,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 00:47:51,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:51,953 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:51,953 INFO L85 PathProgramCache]: Analyzing trace with hash 38104834, now seen corresponding path program 1 times [2021-12-16 00:47:51,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:51,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555625766] [2021-12-16 00:47:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:51,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:47:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 00:47:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 00:47:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:47:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 00:47:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:47:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:47:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:47:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:47:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 00:47:52,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:52,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555625766] [2021-12-16 00:47:52,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555625766] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:47:52,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700304659] [2021-12-16 00:47:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:52,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:52,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:52,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:47:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 00:47:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 00:47:52,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:47:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 00:47:52,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:47:52,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700304659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:52,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:47:52,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-16 00:47:52,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757869576] [2021-12-16 00:47:52,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:52,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:47:52,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:52,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:47:52,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-16 00:47:52,434 INFO L87 Difference]: Start difference. First operand 405 states and 632 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:52,484 INFO L93 Difference]: Finished difference Result 799 states and 1253 transitions. [2021-12-16 00:47:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:47:52,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2021-12-16 00:47:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:52,488 INFO L225 Difference]: With dead ends: 799 [2021-12-16 00:47:52,488 INFO L226 Difference]: Without dead ends: 407 [2021-12-16 00:47:52,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-16 00:47:52,489 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 159 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:52,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 1779 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:47:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-12-16 00:47:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2021-12-16 00:47:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 318 states have (on average 1.5723270440251573) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 20 states have call predecessors, (66), 22 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-16 00:47:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 638 transitions. [2021-12-16 00:47:52,513 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 638 transitions. Word has length 108 [2021-12-16 00:47:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:52,514 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 638 transitions. [2021-12-16 00:47:52,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 638 transitions. [2021-12-16 00:47:52,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-16 00:47:52,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:52,516 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:52,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 00:47:52,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:52,734 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:52,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:52,735 INFO L85 PathProgramCache]: Analyzing trace with hash 486904759, now seen corresponding path program 1 times [2021-12-16 00:47:52,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:52,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417359678] [2021-12-16 00:47:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:52,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:47:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:47:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 00:47:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:47:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 00:47:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:47:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:47:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:47:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:47:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:47:52,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:52,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417359678] [2021-12-16 00:47:52,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417359678] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:52,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:47:52,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:47:52,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576530607] [2021-12-16 00:47:52,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:52,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:47:52,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:52,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:47:52,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:47:52,829 INFO L87 Difference]: Start difference. First operand 407 states and 638 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:54,025 INFO L93 Difference]: Finished difference Result 933 states and 1494 transitions. [2021-12-16 00:47:54,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:47:54,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-12-16 00:47:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:54,030 INFO L225 Difference]: With dead ends: 933 [2021-12-16 00:47:54,030 INFO L226 Difference]: Without dead ends: 549 [2021-12-16 00:47:54,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:47:54,033 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 1200 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:54,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1220 Valid, 1808 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:47:54,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-12-16 00:47:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 407. [2021-12-16 00:47:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 318 states have (on average 1.5723270440251573) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 20 states have call predecessors, (66), 22 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2021-12-16 00:47:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 637 transitions. [2021-12-16 00:47:54,066 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 637 transitions. Word has length 109 [2021-12-16 00:47:54,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:54,067 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 637 transitions. [2021-12-16 00:47:54,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:54,067 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 637 transitions. [2021-12-16 00:47:54,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-16 00:47:54,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:54,070 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:54,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 00:47:54,071 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:54,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:54,071 INFO L85 PathProgramCache]: Analyzing trace with hash -462440815, now seen corresponding path program 2 times [2021-12-16 00:47:54,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:54,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815697498] [2021-12-16 00:47:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:54,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:47:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:47:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 00:47:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:47:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 00:47:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:47:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:47:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:47:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:47:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:54,173 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 00:47:54,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:54,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815697498] [2021-12-16 00:47:54,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815697498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:54,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:47:54,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:47:54,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710364666] [2021-12-16 00:47:54,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:54,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:47:54,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:54,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:47:54,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:47:54,176 INFO L87 Difference]: Start difference. First operand 407 states and 637 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:55,242 INFO L93 Difference]: Finished difference Result 935 states and 1497 transitions. [2021-12-16 00:47:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:47:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2021-12-16 00:47:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:55,246 INFO L225 Difference]: With dead ends: 935 [2021-12-16 00:47:55,246 INFO L226 Difference]: Without dead ends: 551 [2021-12-16 00:47:55,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:47:55,248 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 1281 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:55,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 1762 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:47:55,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-12-16 00:47:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 409. [2021-12-16 00:47:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 319 states have (on average 1.5705329153605017) internal successors, (501), 324 states have internal predecessors, (501), 66 states have call successors, (66), 20 states have call predecessors, (66), 23 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-16 00:47:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 640 transitions. [2021-12-16 00:47:55,269 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 640 transitions. Word has length 110 [2021-12-16 00:47:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:55,269 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 640 transitions. [2021-12-16 00:47:55,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 00:47:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 640 transitions. [2021-12-16 00:47:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-16 00:47:55,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:55,272 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:55,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 00:47:55,272 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:55,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash 212911292, now seen corresponding path program 1 times [2021-12-16 00:47:55,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:55,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54999929] [2021-12-16 00:47:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:55,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:47:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:47:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:47:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:47:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:47:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:47:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:47:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:47:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:47:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 00:47:55,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:55,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54999929] [2021-12-16 00:47:55,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54999929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:55,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:47:55,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:47:55,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332666950] [2021-12-16 00:47:55,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:55,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:47:55,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:55,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:47:55,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:47:55,386 INFO L87 Difference]: Start difference. First operand 409 states and 640 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-16 00:47:57,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:57,019 INFO L93 Difference]: Finished difference Result 933 states and 1492 transitions. [2021-12-16 00:47:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:47:57,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2021-12-16 00:47:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:57,023 INFO L225 Difference]: With dead ends: 933 [2021-12-16 00:47:57,023 INFO L226 Difference]: Without dead ends: 551 [2021-12-16 00:47:57,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:47:57,026 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 1301 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 2983 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 2983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:57,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 2345 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 2983 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-16 00:47:57,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-12-16 00:47:57,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 409. [2021-12-16 00:47:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 319 states have (on average 1.5705329153605017) internal successors, (501), 324 states have internal predecessors, (501), 66 states have call successors, (66), 20 states have call predecessors, (66), 23 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-16 00:47:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 639 transitions. [2021-12-16 00:47:57,064 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 639 transitions. Word has length 111 [2021-12-16 00:47:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:57,064 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 639 transitions. [2021-12-16 00:47:57,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-16 00:47:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 639 transitions. [2021-12-16 00:47:57,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-16 00:47:57,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:57,066 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:57,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 00:47:57,066 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:57,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:57,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1201130407, now seen corresponding path program 2 times [2021-12-16 00:47:57,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079834899] [2021-12-16 00:47:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:57,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:47:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:47:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:47:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 00:47:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:47:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:47:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:47:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:47:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:47:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-16 00:47:57,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:57,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079834899] [2021-12-16 00:47:57,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079834899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:47:57,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:47:57,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:47:57,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763317685] [2021-12-16 00:47:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:47:57,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:47:57,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:47:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:47:57,177 INFO L87 Difference]: Start difference. First operand 409 states and 639 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-16 00:47:58,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:47:58,784 INFO L93 Difference]: Finished difference Result 935 states and 1498 transitions. [2021-12-16 00:47:58,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:47:58,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 112 [2021-12-16 00:47:58,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:47:58,787 INFO L225 Difference]: With dead ends: 935 [2021-12-16 00:47:58,787 INFO L226 Difference]: Without dead ends: 553 [2021-12-16 00:47:58,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:47:58,788 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1284 mSDsluCounter, 1834 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-16 00:47:58,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1284 Valid, 2394 Invalid, 3583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-16 00:47:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-12-16 00:47:58,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 411. [2021-12-16 00:47:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 320 states have (on average 1.56875) internal successors, (502), 326 states have internal predecessors, (502), 66 states have call successors, (66), 20 states have call predecessors, (66), 24 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2021-12-16 00:47:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 645 transitions. [2021-12-16 00:47:58,804 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 645 transitions. Word has length 112 [2021-12-16 00:47:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:47:58,805 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 645 transitions. [2021-12-16 00:47:58,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-16 00:47:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 645 transitions. [2021-12-16 00:47:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-16 00:47:58,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:47:58,806 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:47:58,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 00:47:58,807 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:47:58,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:47:58,807 INFO L85 PathProgramCache]: Analyzing trace with hash 976651745, now seen corresponding path program 1 times [2021-12-16 00:47:58,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:47:58,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81534783] [2021-12-16 00:47:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:58,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:47:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:47:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:47:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:47:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:47:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:47:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:47:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 00:47:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:47:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:47:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:47:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:47:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:47:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-16 00:47:58,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:47:58,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81534783] [2021-12-16 00:47:58,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81534783] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:47:58,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643694085] [2021-12-16 00:47:58,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:47:58,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:47:58,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:47:58,940 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:47:59,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 00:47:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:47:59,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:47:59,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:47:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:47:59,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 00:47:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:47:59,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643694085] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 00:47:59,561 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 00:47:59,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-16 00:47:59,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467295981] [2021-12-16 00:47:59,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 00:47:59,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-16 00:47:59,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:47:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-16 00:47:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-16 00:47:59,564 INFO L87 Difference]: Start difference. First operand 411 states and 645 transitions. Second operand has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-16 00:48:01,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:01,993 INFO L93 Difference]: Finished difference Result 1844 states and 3136 transitions. [2021-12-16 00:48:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-16 00:48:01,993 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 113 [2021-12-16 00:48:01,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:02,000 INFO L225 Difference]: With dead ends: 1844 [2021-12-16 00:48:02,001 INFO L226 Difference]: Without dead ends: 1464 [2021-12-16 00:48:02,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-16 00:48:02,003 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 4194 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 4049 mSolverCounterSat, 1597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 4119 SdHoareTripleChecker+Invalid, 5646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1597 IncrementalHoareTripleChecker+Valid, 4049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:02,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4196 Valid, 4119 Invalid, 5646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1597 Valid, 4049 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-16 00:48:02,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2021-12-16 00:48:02,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 854. [2021-12-16 00:48:02,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 684 states have (on average 1.6198830409356726) internal successors, (1108), 690 states have internal predecessors, (1108), 145 states have call successors, (145), 20 states have call predecessors, (145), 24 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2021-12-16 00:48:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1419 transitions. [2021-12-16 00:48:02,039 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1419 transitions. Word has length 113 [2021-12-16 00:48:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:02,040 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1419 transitions. [2021-12-16 00:48:02,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 11 states have internal predecessors, (126), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-16 00:48:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1419 transitions. [2021-12-16 00:48:02,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 00:48:02,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:02,043 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:02,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-16 00:48:02,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:48:02,260 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:02,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash -245068074, now seen corresponding path program 1 times [2021-12-16 00:48:02,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:02,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295169079] [2021-12-16 00:48:02,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:02,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:48:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:48:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:48:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:48:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:48:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:48:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:02,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:02,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295169079] [2021-12-16 00:48:02,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295169079] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:02,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:02,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:02,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861752290] [2021-12-16 00:48:02,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:02,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:02,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:02,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:02,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:02,356 INFO L87 Difference]: Start difference. First operand 854 states and 1419 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:03,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:03,261 INFO L93 Difference]: Finished difference Result 2195 states and 3744 transitions. [2021-12-16 00:48:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:03,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2021-12-16 00:48:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:03,268 INFO L225 Difference]: With dead ends: 2195 [2021-12-16 00:48:03,268 INFO L226 Difference]: Without dead ends: 1419 [2021-12-16 00:48:03,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:03,271 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 1139 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:03,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 1545 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 00:48:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2021-12-16 00:48:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1269. [2021-12-16 00:48:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1020 states have (on average 1.6352941176470588) internal successors, (1668), 1026 states have internal predecessors, (1668), 224 states have call successors, (224), 20 states have call predecessors, (224), 24 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2021-12-16 00:48:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2147 transitions. [2021-12-16 00:48:03,337 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2147 transitions. Word has length 116 [2021-12-16 00:48:03,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:03,337 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 2147 transitions. [2021-12-16 00:48:03,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2147 transitions. [2021-12-16 00:48:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-16 00:48:03,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:03,341 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:03,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 00:48:03,342 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:03,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:03,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1319546341, now seen corresponding path program 1 times [2021-12-16 00:48:03,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:03,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261047868] [2021-12-16 00:48:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:03,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:48:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:48:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:48:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:48:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:48:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:48:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:03,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:03,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261047868] [2021-12-16 00:48:03,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261047868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:03,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:03,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:03,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967079337] [2021-12-16 00:48:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:03,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:03,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:03,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:03,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:03,421 INFO L87 Difference]: Start difference. First operand 1269 states and 2147 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:04,330 INFO L93 Difference]: Finished difference Result 3234 states and 5557 transitions. [2021-12-16 00:48:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:04,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2021-12-16 00:48:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:04,340 INFO L225 Difference]: With dead ends: 3234 [2021-12-16 00:48:04,340 INFO L226 Difference]: Without dead ends: 2096 [2021-12-16 00:48:04,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:04,344 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1184 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:04,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 1497 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 00:48:04,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2021-12-16 00:48:04,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1946. [2021-12-16 00:48:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1578 states have (on average 1.641318124207858) internal successors, (2590), 1584 states have internal predecessors, (2590), 343 states have call successors, (343), 20 states have call predecessors, (343), 24 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2021-12-16 00:48:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 3307 transitions. [2021-12-16 00:48:04,433 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 3307 transitions. Word has length 117 [2021-12-16 00:48:04,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:04,433 INFO L470 AbstractCegarLoop]: Abstraction has 1946 states and 3307 transitions. [2021-12-16 00:48:04,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:04,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 3307 transitions. [2021-12-16 00:48:04,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-16 00:48:04,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:04,440 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:04,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 00:48:04,440 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:04,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:04,440 INFO L85 PathProgramCache]: Analyzing trace with hash 464458664, now seen corresponding path program 1 times [2021-12-16 00:48:04,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:04,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137064751] [2021-12-16 00:48:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:04,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:48:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:48:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:48:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:48:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:48:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:48:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:04,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:04,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137064751] [2021-12-16 00:48:04,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137064751] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:04,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:04,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:04,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346337927] [2021-12-16 00:48:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:04,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:04,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:04,513 INFO L87 Difference]: Start difference. First operand 1946 states and 3307 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:05,604 INFO L93 Difference]: Finished difference Result 4819 states and 8336 transitions. [2021-12-16 00:48:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-16 00:48:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:05,619 INFO L225 Difference]: With dead ends: 4819 [2021-12-16 00:48:05,619 INFO L226 Difference]: Without dead ends: 3139 [2021-12-16 00:48:05,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:05,625 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1133 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:05,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 1502 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:48:05,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2021-12-16 00:48:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2989. [2021-12-16 00:48:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2459 states have (on average 1.6461976413176087) internal successors, (4048), 2465 states have internal predecessors, (4048), 505 states have call successors, (505), 20 states have call predecessors, (505), 24 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2021-12-16 00:48:05,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 5105 transitions. [2021-12-16 00:48:05,781 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 5105 transitions. Word has length 118 [2021-12-16 00:48:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:05,781 INFO L470 AbstractCegarLoop]: Abstraction has 2989 states and 5105 transitions. [2021-12-16 00:48:05,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 5105 transitions. [2021-12-16 00:48:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 00:48:05,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:05,789 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:05,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 00:48:05,789 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1435382660, now seen corresponding path program 1 times [2021-12-16 00:48:05,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:05,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280921349] [2021-12-16 00:48:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:05,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:48:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:48:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:48:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:48:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:48:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:48:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:05,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:05,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280921349] [2021-12-16 00:48:05,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280921349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:05,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:05,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:05,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106934235] [2021-12-16 00:48:05,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:05,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:05,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:05,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:05,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:05,863 INFO L87 Difference]: Start difference. First operand 2989 states and 5105 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:06,946 INFO L93 Difference]: Finished difference Result 7333 states and 12751 transitions. [2021-12-16 00:48:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:06,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-16 00:48:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:06,981 INFO L225 Difference]: With dead ends: 7333 [2021-12-16 00:48:06,995 INFO L226 Difference]: Without dead ends: 4829 [2021-12-16 00:48:07,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:07,003 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1246 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:07,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 1468 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 00:48:07,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4829 states. [2021-12-16 00:48:07,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4679. [2021-12-16 00:48:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4679 states, 3904 states have (on average 1.6495901639344261) internal successors, (6440), 3910 states have internal predecessors, (6440), 750 states have call successors, (750), 20 states have call predecessors, (750), 24 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2021-12-16 00:48:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4679 states to 4679 states and 8013 transitions. [2021-12-16 00:48:07,297 INFO L78 Accepts]: Start accepts. Automaton has 4679 states and 8013 transitions. Word has length 119 [2021-12-16 00:48:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:07,297 INFO L470 AbstractCegarLoop]: Abstraction has 4679 states and 8013 transitions. [2021-12-16 00:48:07,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4679 states and 8013 transitions. [2021-12-16 00:48:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-16 00:48:07,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:07,306 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:07,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 00:48:07,307 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:07,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2114257012, now seen corresponding path program 1 times [2021-12-16 00:48:07,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:07,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657094539] [2021-12-16 00:48:07,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:07,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:48:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:48:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:48:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:48:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:48:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:48:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:07,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:07,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657094539] [2021-12-16 00:48:07,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657094539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:07,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:07,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:07,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396841551] [2021-12-16 00:48:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:07,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:07,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:07,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:07,385 INFO L87 Difference]: Start difference. First operand 4679 states and 8013 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:08,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:08,596 INFO L93 Difference]: Finished difference Result 11534 states and 20128 transitions. [2021-12-16 00:48:08,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:08,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-16 00:48:08,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:08,634 INFO L225 Difference]: With dead ends: 11534 [2021-12-16 00:48:08,635 INFO L226 Difference]: Without dead ends: 7672 [2021-12-16 00:48:08,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:08,646 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 1156 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:08,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 1510 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:48:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2021-12-16 00:48:08,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 7522. [2021-12-16 00:48:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 6254 states have (on average 1.6467860569235688) internal successors, (10299), 6260 states have internal predecessors, (10299), 1243 states have call successors, (1243), 20 states have call predecessors, (1243), 24 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2021-12-16 00:48:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 12902 transitions. [2021-12-16 00:48:08,985 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 12902 transitions. Word has length 120 [2021-12-16 00:48:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:08,986 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 12902 transitions. [2021-12-16 00:48:08,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 12902 transitions. [2021-12-16 00:48:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-16 00:48:08,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:08,998 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:08,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 00:48:08,998 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash 93202336, now seen corresponding path program 1 times [2021-12-16 00:48:08,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379413270] [2021-12-16 00:48:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:08,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:48:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:48:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:48:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:48:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:48:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:48:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:09,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:09,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379413270] [2021-12-16 00:48:09,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379413270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:09,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:09,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:09,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90920259] [2021-12-16 00:48:09,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:09,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:09,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:09,066 INFO L87 Difference]: Start difference. First operand 7522 states and 12902 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:10,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:10,509 INFO L93 Difference]: Finished difference Result 19149 states and 33404 transitions. [2021-12-16 00:48:10,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:10,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-16 00:48:10,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:10,555 INFO L225 Difference]: With dead ends: 19149 [2021-12-16 00:48:10,555 INFO L226 Difference]: Without dead ends: 12846 [2021-12-16 00:48:10,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:10,572 INFO L933 BasicCegarLoop]: 589 mSDtfsCounter, 1147 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:10,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1165 Valid, 1494 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:48:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12846 states. [2021-12-16 00:48:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12846 to 12696. [2021-12-16 00:48:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12696 states, 10606 states have (on average 1.646426551008863) internal successors, (17462), 10612 states have internal predecessors, (17462), 2065 states have call successors, (2065), 20 states have call predecessors, (2065), 24 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2021-12-16 00:48:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12696 states to 12696 states and 21787 transitions. [2021-12-16 00:48:11,089 INFO L78 Accepts]: Start accepts. Automaton has 12696 states and 21787 transitions. Word has length 121 [2021-12-16 00:48:11,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:11,089 INFO L470 AbstractCegarLoop]: Abstraction has 12696 states and 21787 transitions. [2021-12-16 00:48:11,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:11,089 INFO L276 IsEmpty]: Start isEmpty. Operand 12696 states and 21787 transitions. [2021-12-16 00:48:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-16 00:48:11,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:11,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:11,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 00:48:11,104 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:11,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:11,104 INFO L85 PathProgramCache]: Analyzing trace with hash 838987262, now seen corresponding path program 1 times [2021-12-16 00:48:11,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:11,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991930874] [2021-12-16 00:48:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:11,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:48:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:48:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:48:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:48:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:48:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:48:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:11,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:11,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991930874] [2021-12-16 00:48:11,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991930874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:11,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:11,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:11,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751149128] [2021-12-16 00:48:11,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:11,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:11,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:11,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:11,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:11,178 INFO L87 Difference]: Start difference. First operand 12696 states and 21787 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:12,686 INFO L93 Difference]: Finished difference Result 30632 states and 53104 transitions. [2021-12-16 00:48:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:12,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-16 00:48:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:12,784 INFO L225 Difference]: With dead ends: 30632 [2021-12-16 00:48:12,784 INFO L226 Difference]: Without dead ends: 20159 [2021-12-16 00:48:12,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:12,805 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 1176 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:12,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 1473 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 00:48:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20159 states. [2021-12-16 00:48:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20159 to 20009. [2021-12-16 00:48:13,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20009 states, 16716 states have (on average 1.6216798277099784) internal successors, (27108), 16722 states have internal predecessors, (27108), 3268 states have call successors, (3268), 20 states have call predecessors, (3268), 24 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2021-12-16 00:48:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20009 states to 20009 states and 33983 transitions. [2021-12-16 00:48:13,650 INFO L78 Accepts]: Start accepts. Automaton has 20009 states and 33983 transitions. Word has length 122 [2021-12-16 00:48:13,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:13,651 INFO L470 AbstractCegarLoop]: Abstraction has 20009 states and 33983 transitions. [2021-12-16 00:48:13,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 20009 states and 33983 transitions. [2021-12-16 00:48:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-16 00:48:13,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:13,664 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:13,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 00:48:13,665 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:13,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:13,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1516226529, now seen corresponding path program 1 times [2021-12-16 00:48:13,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:13,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750095651] [2021-12-16 00:48:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:13,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:48:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:48:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:48:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:48:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:48:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 00:48:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:13,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:13,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750095651] [2021-12-16 00:48:13,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750095651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:13,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:13,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:13,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252291270] [2021-12-16 00:48:13,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:13,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:13,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:13,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:13,735 INFO L87 Difference]: Start difference. First operand 20009 states and 33983 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:16,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:16,179 INFO L93 Difference]: Finished difference Result 53074 states and 91638 transitions. [2021-12-16 00:48:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:16,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-16 00:48:16,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:16,407 INFO L225 Difference]: With dead ends: 53074 [2021-12-16 00:48:16,407 INFO L226 Difference]: Without dead ends: 35965 [2021-12-16 00:48:16,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:16,440 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 1128 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:16,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 1521 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:48:16,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35965 states. [2021-12-16 00:48:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35965 to 35815. [2021-12-16 00:48:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35815 states, 30072 states have (on average 1.6184490555998936) internal successors, (48670), 30078 states have internal predecessors, (48670), 5718 states have call successors, (5718), 20 states have call predecessors, (5718), 24 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2021-12-16 00:48:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35815 states to 35815 states and 60719 transitions. [2021-12-16 00:48:18,196 INFO L78 Accepts]: Start accepts. Automaton has 35815 states and 60719 transitions. Word has length 123 [2021-12-16 00:48:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:18,196 INFO L470 AbstractCegarLoop]: Abstraction has 35815 states and 60719 transitions. [2021-12-16 00:48:18,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 35815 states and 60719 transitions. [2021-12-16 00:48:18,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-16 00:48:18,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:18,220 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:18,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 00:48:18,220 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:18,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash -259176764, now seen corresponding path program 1 times [2021-12-16 00:48:18,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:18,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536942498] [2021-12-16 00:48:18,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:18,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:48:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:48:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:48:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:48:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:48:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:48:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:18,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:18,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536942498] [2021-12-16 00:48:18,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536942498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:18,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:18,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:18,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942437776] [2021-12-16 00:48:18,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:18,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:18,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:18,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:18,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:18,315 INFO L87 Difference]: Start difference. First operand 35815 states and 60719 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:21,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:21,572 INFO L93 Difference]: Finished difference Result 97921 states and 168197 transitions. [2021-12-16 00:48:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:21,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-16 00:48:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:21,780 INFO L225 Difference]: With dead ends: 97921 [2021-12-16 00:48:21,780 INFO L226 Difference]: Without dead ends: 65962 [2021-12-16 00:48:21,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:21,851 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 1225 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:21,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 1463 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 00:48:21,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65962 states. [2021-12-16 00:48:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65962 to 65812. [2021-12-16 00:48:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65812 states, 55556 states have (on average 1.614281085751314) internal successors, (89683), 55562 states have internal predecessors, (89683), 10231 states have call successors, (10231), 20 states have call predecessors, (10231), 24 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2021-12-16 00:48:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65812 states to 65812 states and 111290 transitions. [2021-12-16 00:48:25,274 INFO L78 Accepts]: Start accepts. Automaton has 65812 states and 111290 transitions. Word has length 124 [2021-12-16 00:48:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:25,275 INFO L470 AbstractCegarLoop]: Abstraction has 65812 states and 111290 transitions. [2021-12-16 00:48:25,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 65812 states and 111290 transitions. [2021-12-16 00:48:25,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-16 00:48:25,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:25,293 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:25,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 00:48:25,294 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:25,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:25,294 INFO L85 PathProgramCache]: Analyzing trace with hash -497212833, now seen corresponding path program 1 times [2021-12-16 00:48:25,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:25,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191673905] [2021-12-16 00:48:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:25,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:48:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:48:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:48:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:48:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:48:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:48:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:48:25,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:25,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191673905] [2021-12-16 00:48:25,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191673905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:25,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:48:25,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:48:25,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958342824] [2021-12-16 00:48:25,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:48:25,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:48:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:48:25,369 INFO L87 Difference]: Start difference. First operand 65812 states and 111290 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:30,825 INFO L93 Difference]: Finished difference Result 123582 states and 212630 transitions. [2021-12-16 00:48:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:48:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-12-16 00:48:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:31,272 INFO L225 Difference]: With dead ends: 123582 [2021-12-16 00:48:31,272 INFO L226 Difference]: Without dead ends: 123450 [2021-12-16 00:48:31,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:48:31,323 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1140 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:31,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 1492 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:48:31,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123450 states. [2021-12-16 00:48:36,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123450 to 123300. [2021-12-16 00:48:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123300 states, 104676 states have (on average 1.6091081050097444) internal successors, (168435), 104682 states have internal predecessors, (168435), 18599 states have call successors, (18599), 20 states have call predecessors, (18599), 24 states have return successors, (20790), 18597 states have call predecessors, (20790), 18598 states have call successors, (20790) [2021-12-16 00:48:37,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123300 states to 123300 states and 207824 transitions. [2021-12-16 00:48:37,322 INFO L78 Accepts]: Start accepts. Automaton has 123300 states and 207824 transitions. Word has length 125 [2021-12-16 00:48:37,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:48:37,322 INFO L470 AbstractCegarLoop]: Abstraction has 123300 states and 207824 transitions. [2021-12-16 00:48:37,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 00:48:37,322 INFO L276 IsEmpty]: Start isEmpty. Operand 123300 states and 207824 transitions. [2021-12-16 00:48:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-16 00:48:37,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:48:37,347 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:48:37,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 00:48:37,347 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:48:37,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:48:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 3720645, now seen corresponding path program 1 times [2021-12-16 00:48:37,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:48:37,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230457118] [2021-12-16 00:48:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:37,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:48:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:48:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:48:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:48:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:48:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:48:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:48:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:48:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:48:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:48:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:48:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:48:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:48:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-16 00:48:37,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:48:37,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230457118] [2021-12-16 00:48:37,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230457118] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:48:37,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793562412] [2021-12-16 00:48:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:48:37,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:48:37,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:48:37,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:48:37,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 00:48:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:48:37,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-16 00:48:37,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:48:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-16 00:48:38,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:48:38,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793562412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:48:38,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:48:38,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2021-12-16 00:48:38,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377935053] [2021-12-16 00:48:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:48:38,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:48:38,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:48:38,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:48:38,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2021-12-16 00:48:38,182 INFO L87 Difference]: Start difference. First operand 123300 states and 207824 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-16 00:48:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:48:42,966 INFO L93 Difference]: Finished difference Result 123718 states and 208438 transitions. [2021-12-16 00:48:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 00:48:42,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 126 [2021-12-16 00:48:42,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:48:43,545 INFO L225 Difference]: With dead ends: 123718 [2021-12-16 00:48:43,545 INFO L226 Difference]: Without dead ends: 123592 [2021-12-16 00:48:43,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1609, Unknown=0, NotChecked=0, Total=1806 [2021-12-16 00:48:43,591 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 919 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 5458 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 00:48:43,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [929 Valid, 5458 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 00:48:43,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123592 states.