./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec9_product20.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 da4068869d66a98d783b3eb3a8d0497ba7ef569dcf8b3f3f7d9e0053e2966936 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:53:58,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:53:58,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:53:58,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:53:58,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:53:58,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:53:58,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:53:58,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:53:58,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:53:58,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:53:58,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:53:58,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:53:58,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:53:58,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:53:58,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:53:58,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:53:58,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:53:58,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:53:58,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:53:58,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:53:58,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:53:58,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:53:58,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:53:58,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:53:58,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:53:58,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:53:58,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:53:58,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:53:58,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:53:58,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:53:58,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:53:58,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:53:58,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:53:58,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:53:58,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:53:58,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:53:58,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:53:58,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:53:58,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:53:58,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:53:58,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:53:58,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:53:58,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:53:58,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:53:58,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:53:58,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:53:58,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:53:58,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:53:58,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:53:58,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:53:58,513 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:53:58,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:53:58,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:53:58,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:53:58,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:53:58,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:53:58,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:53:58,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:53:58,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:53:58,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:53:58,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:53:58,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:53:58,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:53:58,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:53:58,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:53:58,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:53:58,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:53:58,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:53:58,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:53:58,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da4068869d66a98d783b3eb3a8d0497ba7ef569dcf8b3f3f7d9e0053e2966936 [2021-12-28 00:53:58,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:53:58,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:53:58,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:53:58,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:53:58,778 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:53:58,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product20.cil.c [2021-12-28 00:53:58,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818233f69/02b6bae6066445f09544efb8d69f6fd2/FLAG917bb5c72 [2021-12-28 00:53:59,259 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:53:59,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product20.cil.c [2021-12-28 00:53:59,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818233f69/02b6bae6066445f09544efb8d69f6fd2/FLAG917bb5c72 [2021-12-28 00:53:59,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818233f69/02b6bae6066445f09544efb8d69f6fd2 [2021-12-28 00:53:59,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:53:59,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:53:59,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:53:59,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:53:59,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:53:59,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:53:59" (1/1) ... [2021-12-28 00:53:59,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d7c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:59, skipping insertion in model container [2021-12-28 00:53:59,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:53:59" (1/1) ... [2021-12-28 00:53:59,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:53:59,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:54:00,027 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_spec9_product20.cil.c[63436,63449] [2021-12-28 00:54:00,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:54:00,038 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:54:00,110 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_spec9_product20.cil.c[63436,63449] [2021-12-28 00:54:00,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:54:00,140 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:54:00,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00 WrapperNode [2021-12-28 00:54:00,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:54:00,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:54:00,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:54:00,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:54:00,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,201 INFO L137 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 967 [2021-12-28 00:54:00,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:54:00,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:54:00,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:54:00,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:54:00,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:54:00,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:54:00,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:54:00,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:54:00,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (1/1) ... [2021-12-28 00:54:00,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:54:00,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:00,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 00:54:00,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 00:54:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:54:00,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:54:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-28 00:54:00,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-28 00:54:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:54:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:54:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-28 00:54:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-28 00:54:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:54:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:54:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:54:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:54:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:54:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:54:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:54:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:54:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-28 00:54:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-28 00:54:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:54:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:54:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:54:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-28 00:54:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-28 00:54:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:54:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:54:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:54:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:54:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:54:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:54:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:54:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:54:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:54:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:54:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:54:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:54:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:54:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-28 00:54:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-28 00:54:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:54:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:54:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:54:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:54:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:54:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:54:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:54:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:54:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:54:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:54:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:54:00,569 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:54:00,570 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:54:01,079 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:54:01,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:54:01,092 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:54:01,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:54:01 BoogieIcfgContainer [2021-12-28 00:54:01,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:54:01,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:54:01,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:54:01,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:54:01,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:53:59" (1/3) ... [2021-12-28 00:54:01,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c81f652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:54:01, skipping insertion in model container [2021-12-28 00:54:01,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:54:00" (2/3) ... [2021-12-28 00:54:01,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c81f652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:54:01, skipping insertion in model container [2021-12-28 00:54:01,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:54:01" (3/3) ... [2021-12-28 00:54:01,101 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product20.cil.c [2021-12-28 00:54:01,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:54:01,105 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:54:01,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:54:01,158 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 00:54:01,158 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:54:01,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 365 states, 287 states have (on average 1.578397212543554) internal successors, (453), 292 states have internal predecessors, (453), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2021-12-28 00:54:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-28 00:54:01,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:01,207 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, 1] [2021-12-28 00:54:01,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:01,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:01,212 INFO L85 PathProgramCache]: Analyzing trace with hash 288794369, now seen corresponding path program 1 times [2021-12-28 00:54:01,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:01,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083996376] [2021-12-28 00:54:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:01,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:54:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:54:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:54:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:54:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:54:01,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:01,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083996376] [2021-12-28 00:54:01,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083996376] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:01,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221745623] [2021-12-28 00:54:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:01,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:01,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:01,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:54:01,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:54:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:54:01,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:54:01,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:01,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221745623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:01,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:01,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:54:01,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117209754] [2021-12-28 00:54:01,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:02,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:54:02,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:02,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:54:02,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:02,020 INFO L87 Difference]: Start difference. First operand has 365 states, 287 states have (on average 1.578397212543554) internal successors, (453), 292 states have internal predecessors, (453), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:02,053 INFO L93 Difference]: Finished difference Result 537 states and 812 transitions. [2021-12-28 00:54:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:54:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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 98 [2021-12-28 00:54:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:02,064 INFO L225 Difference]: With dead ends: 537 [2021-12-28 00:54:02,064 INFO L226 Difference]: Without dead ends: 358 [2021-12-28 00:54:02,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:02,070 INFO L933 BasicCegarLoop]: 557 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, 557 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:02,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-12-28 00:54:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-12-28 00:54:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 281 states have (on average 1.5729537366548043) internal successors, (442), 285 states have internal predecessors, (442), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-28 00:54:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 549 transitions. [2021-12-28 00:54:02,121 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 549 transitions. Word has length 98 [2021-12-28 00:54:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:02,122 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 549 transitions. [2021-12-28 00:54:02,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 549 transitions. [2021-12-28 00:54:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 00:54:02,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:02,126 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, 1, 1] [2021-12-28 00:54:02,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:02,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-28 00:54:02,347 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -784061991, now seen corresponding path program 1 times [2021-12-28 00:54:02,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:02,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053745813] [2021-12-28 00:54:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:02,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:54:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:54:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:54:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:54:02,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:02,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053745813] [2021-12-28 00:54:02,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053745813] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:02,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154679126] [2021-12-28 00:54:02,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:02,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:02,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:02,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:54:02,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:54:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:54:02,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:54:02,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:02,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154679126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:02,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:02,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:54:02,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797395466] [2021-12-28 00:54:02,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:02,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:54:02,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:02,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:54:02,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:02,886 INFO L87 Difference]: Start difference. First operand 358 states and 549 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:02,914 INFO L93 Difference]: Finished difference Result 527 states and 790 transitions. [2021-12-28 00:54:02,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:54:02,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 99 [2021-12-28 00:54:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:02,917 INFO L225 Difference]: With dead ends: 527 [2021-12-28 00:54:02,917 INFO L226 Difference]: Without dead ends: 361 [2021-12-28 00:54:02,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:02,920 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 1 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:02,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1092 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:02,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-12-28 00:54:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 360. [2021-12-28 00:54:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 283 states have (on average 1.568904593639576) internal successors, (444), 287 states have internal predecessors, (444), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-28 00:54:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 551 transitions. [2021-12-28 00:54:02,936 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 551 transitions. Word has length 99 [2021-12-28 00:54:02,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:02,936 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 551 transitions. [2021-12-28 00:54:02,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 551 transitions. [2021-12-28 00:54:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:54:02,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:02,939 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, 1] [2021-12-28 00:54:02,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:03,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-28 00:54:03,173 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:03,173 INFO L85 PathProgramCache]: Analyzing trace with hash 646331436, now seen corresponding path program 1 times [2021-12-28 00:54:03,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:03,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306465534] [2021-12-28 00:54:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:03,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:54:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:54:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:54:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:54:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:54:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:03,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:03,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306465534] [2021-12-28 00:54:03,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306465534] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:03,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260844186] [2021-12-28 00:54:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:03,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:03,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:03,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:54:03,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:54:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:54:03,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:54:03,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:03,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260844186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:03,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:03,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:54:03,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562293462] [2021-12-28 00:54:03,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:03,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:54:03,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:03,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:54:03,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:03,660 INFO L87 Difference]: Start difference. First operand 360 states and 551 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:03,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:03,686 INFO L93 Difference]: Finished difference Result 768 states and 1194 transitions. [2021-12-28 00:54:03,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:54:03,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 108 [2021-12-28 00:54:03,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:03,690 INFO L225 Difference]: With dead ends: 768 [2021-12-28 00:54:03,690 INFO L226 Difference]: Without dead ends: 435 [2021-12-28 00:54:03,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:54:03,693 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 134 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:03,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:03,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-12-28 00:54:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 427. [2021-12-28 00:54:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 336 states have (on average 1.5863095238095237) internal successors, (533), 340 states have internal predecessors, (533), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-28 00:54:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 668 transitions. [2021-12-28 00:54:03,721 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 668 transitions. Word has length 108 [2021-12-28 00:54:03,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:03,721 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 668 transitions. [2021-12-28 00:54:03,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:03,722 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 668 transitions. [2021-12-28 00:54:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-28 00:54:03,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:03,724 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, 1, 1] [2021-12-28 00:54:03,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:03,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:03,943 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:03,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1891029044, now seen corresponding path program 1 times [2021-12-28 00:54:03,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:03,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254141288] [2021-12-28 00:54:03,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:03,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:54:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:54:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:54:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:54:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:54:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:54:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:54:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:04,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:04,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254141288] [2021-12-28 00:54:04,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254141288] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:04,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503596841] [2021-12-28 00:54:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:04,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:04,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:04,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:54:04,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:54:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:54:04,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:54:04,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:04,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503596841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:04,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:04,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:54:04,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384424788] [2021-12-28 00:54:04,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:04,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:54:04,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:54:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:54:04,422 INFO L87 Difference]: Start difference. First operand 427 states and 668 transitions. Second operand has 5 states, 4 states have (on average 18.75) 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), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:04,481 INFO L93 Difference]: Finished difference Result 845 states and 1326 transitions. [2021-12-28 00:54:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:54:04,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) 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), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-12-28 00:54:04,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:04,484 INFO L225 Difference]: With dead ends: 845 [2021-12-28 00:54:04,484 INFO L226 Difference]: Without dead ends: 429 [2021-12-28 00:54:04,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:04,488 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 152 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:04,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1986 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-28 00:54:04,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2021-12-28 00:54:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 337 states have (on average 1.5845697329376855) internal successors, (534), 342 states have internal predecessors, (534), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2021-12-28 00:54:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 671 transitions. [2021-12-28 00:54:04,507 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 671 transitions. Word has length 109 [2021-12-28 00:54:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:04,507 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 671 transitions. [2021-12-28 00:54:04,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) 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), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 671 transitions. [2021-12-28 00:54:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:54:04,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:04,510 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, 1, 1] [2021-12-28 00:54:04,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:04,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:04,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:04,728 INFO L85 PathProgramCache]: Analyzing trace with hash -256887782, now seen corresponding path program 1 times [2021-12-28 00:54:04,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:04,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383518282] [2021-12-28 00:54:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:04,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:54:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:54:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:54:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:54:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:54:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:54:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:54:04,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:04,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383518282] [2021-12-28 00:54:04,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383518282] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:04,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250978229] [2021-12-28 00:54:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:04,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:04,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:04,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:54:04,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:54:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:54:05,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:05,275 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:54:05,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:54:05,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250978229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:05,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:54:05,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:54:05,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149308165] [2021-12-28 00:54:05,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:05,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:54:05,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:05,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:54:05,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:54:05,277 INFO L87 Difference]: Start difference. First operand 429 states and 671 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:05,340 INFO L93 Difference]: Finished difference Result 847 states and 1331 transitions. [2021-12-28 00:54:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:54:05,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 110 [2021-12-28 00:54:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:05,346 INFO L225 Difference]: With dead ends: 847 [2021-12-28 00:54:05,346 INFO L226 Difference]: Without dead ends: 431 [2021-12-28 00:54:05,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:54:05,348 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 151 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:05,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1975 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:54:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-12-28 00:54:05,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-12-28 00:54:05,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 344 states have internal predecessors, (535), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2021-12-28 00:54:05,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 677 transitions. [2021-12-28 00:54:05,390 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 677 transitions. Word has length 110 [2021-12-28 00:54:05,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:05,391 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 677 transitions. [2021-12-28 00:54:05,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:05,391 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 677 transitions. [2021-12-28 00:54:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:54:05,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:05,392 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:05,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:05,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:05,620 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:05,620 INFO L85 PathProgramCache]: Analyzing trace with hash 701781740, now seen corresponding path program 1 times [2021-12-28 00:54:05,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:05,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919655471] [2021-12-28 00:54:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:05,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:54:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:54:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:54:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:54:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:54:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:05,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:05,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919655471] [2021-12-28 00:54:05,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919655471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:05,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:05,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:54:05,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008839992] [2021-12-28 00:54:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:05,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:54:05,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:05,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:54:05,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:05,741 INFO L87 Difference]: Start difference. First operand 431 states and 677 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:06,819 INFO L93 Difference]: Finished difference Result 951 states and 1516 transitions. [2021-12-28 00:54:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:54:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (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 111 [2021-12-28 00:54:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:06,824 INFO L225 Difference]: With dead ends: 951 [2021-12-28 00:54:06,824 INFO L226 Difference]: Without dead ends: 543 [2021-12-28 00:54:06,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:54:06,827 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 1310 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:06,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 1586 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:54:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-12-28 00:54:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 431. [2021-12-28 00:54:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 338 states have (on average 1.5828402366863905) internal successors, (535), 344 states have internal predecessors, (535), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2021-12-28 00:54:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 676 transitions. [2021-12-28 00:54:06,874 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 676 transitions. Word has length 111 [2021-12-28 00:54:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:06,876 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 676 transitions. [2021-12-28 00:54:06,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 676 transitions. [2021-12-28 00:54:06,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:54:06,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:06,879 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:06,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:54:06,879 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:06,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:06,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1977119576, now seen corresponding path program 2 times [2021-12-28 00:54:06,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:06,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991910039] [2021-12-28 00:54:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:06,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:54:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:54:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:54:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:54:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:54:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:54:06,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:06,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991910039] [2021-12-28 00:54:06,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991910039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:06,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:06,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:54:06,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838839938] [2021-12-28 00:54:06,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:06,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:54:06,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:06,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:54:06,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:54:06,972 INFO L87 Difference]: Start difference. First operand 431 states and 676 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:08,117 INFO L93 Difference]: Finished difference Result 953 states and 1519 transitions. [2021-12-28 00:54:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:54:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 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 112 [2021-12-28 00:54:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:08,121 INFO L225 Difference]: With dead ends: 953 [2021-12-28 00:54:08,121 INFO L226 Difference]: Without dead ends: 545 [2021-12-28 00:54:08,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:54:08,125 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 1305 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:08,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 1590 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:54:08,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-12-28 00:54:08,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 433. [2021-12-28 00:54:08,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 346 states have internal predecessors, (536), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2021-12-28 00:54:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 679 transitions. [2021-12-28 00:54:08,175 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 679 transitions. Word has length 112 [2021-12-28 00:54:08,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:08,176 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 679 transitions. [2021-12-28 00:54:08,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:54:08,176 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 679 transitions. [2021-12-28 00:54:08,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 00:54:08,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:08,178 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:08,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:54:08,178 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:08,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:08,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1369416463, now seen corresponding path program 1 times [2021-12-28 00:54:08,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:08,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860576716] [2021-12-28 00:54:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:08,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:54:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:54:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:54:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:54:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:54:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:54:08,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:08,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860576716] [2021-12-28 00:54:08,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860576716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:08,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:08,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:54:08,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741192752] [2021-12-28 00:54:08,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:08,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:54:08,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:08,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:54:08,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:54:08,336 INFO L87 Difference]: Start difference. First operand 433 states and 679 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:09,889 INFO L93 Difference]: Finished difference Result 951 states and 1514 transitions. [2021-12-28 00:54:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:54:09,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 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 113 [2021-12-28 00:54:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:09,892 INFO L225 Difference]: With dead ends: 951 [2021-12-28 00:54:09,892 INFO L226 Difference]: Without dead ends: 545 [2021-12-28 00:54:09,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:54:09,894 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1445 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 4022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:09,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1445 Valid, 1954 Invalid, 4022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 3496 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 00:54:09,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-12-28 00:54:09,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 433. [2021-12-28 00:54:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 339 states have (on average 1.5811209439528024) internal successors, (536), 346 states have internal predecessors, (536), 68 states have call successors, (68), 22 states have call predecessors, (68), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2021-12-28 00:54:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 678 transitions. [2021-12-28 00:54:09,918 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 678 transitions. Word has length 113 [2021-12-28 00:54:09,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:09,919 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 678 transitions. [2021-12-28 00:54:09,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:09,919 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 678 transitions. [2021-12-28 00:54:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-28 00:54:09,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:09,922 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, 1, 1] [2021-12-28 00:54:09,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:54:09,923 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:09,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:09,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1863866383, now seen corresponding path program 2 times [2021-12-28 00:54:09,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:09,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258779896] [2021-12-28 00:54:09,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:09,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:54:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:54:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:54:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:54:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:54:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:54:10,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:10,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258779896] [2021-12-28 00:54:10,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258779896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:10,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:10,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:54:10,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118958816] [2021-12-28 00:54:10,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:10,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:54:10,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:10,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:54:10,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:54:10,046 INFO L87 Difference]: Start difference. First operand 433 states and 678 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:11,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:11,867 INFO L93 Difference]: Finished difference Result 953 states and 1520 transitions. [2021-12-28 00:54:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:54:11,867 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 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 114 [2021-12-28 00:54:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:11,870 INFO L225 Difference]: With dead ends: 953 [2021-12-28 00:54:11,870 INFO L226 Difference]: Without dead ends: 547 [2021-12-28 00:54:11,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:54:11,872 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1442 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 3565 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 4055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 3565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:11,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 1953 Invalid, 4055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 3565 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 00:54:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-12-28 00:54:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 435. [2021-12-28 00:54:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 340 states have (on average 1.5794117647058823) internal successors, (537), 348 states have internal predecessors, (537), 68 states have call successors, (68), 22 states have call predecessors, (68), 26 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2021-12-28 00:54:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 684 transitions. [2021-12-28 00:54:11,890 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 684 transitions. Word has length 114 [2021-12-28 00:54:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:11,890 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 684 transitions. [2021-12-28 00:54:11,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:54:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 684 transitions. [2021-12-28 00:54:11,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-28 00:54:11,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:11,892 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, 1, 1] [2021-12-28 00:54:11,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:54:11,892 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:11,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:11,893 INFO L85 PathProgramCache]: Analyzing trace with hash 893010166, now seen corresponding path program 1 times [2021-12-28 00:54:11,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:11,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710287180] [2021-12-28 00:54:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:11,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:54:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:54:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:54:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:11,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:54:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:54:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:54:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-28 00:54:12,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:12,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710287180] [2021-12-28 00:54:12,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710287180] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:54:12,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468655026] [2021-12-28 00:54:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:12,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:12,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:54:12,010 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:54:12,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:54:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:12,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:54:12,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:54:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:12,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:54:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:12,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468655026] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:54:12,565 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:54:12,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-28 00:54:12,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966063612] [2021-12-28 00:54:12,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:54:12,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 00:54:12,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:12,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 00:54:12,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:54:12,566 INFO L87 Difference]: Start difference. First operand 435 states and 684 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:54:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:15,450 INFO L93 Difference]: Finished difference Result 1812 states and 3078 transitions. [2021-12-28 00:54:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 00:54:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 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 115 [2021-12-28 00:54:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:15,459 INFO L225 Difference]: With dead ends: 1812 [2021-12-28 00:54:15,459 INFO L226 Difference]: Without dead ends: 1408 [2021-12-28 00:54:15,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-28 00:54:15,461 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 3346 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 5579 mSolverCounterSat, 1246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3348 SdHoareTripleChecker+Valid, 4261 SdHoareTripleChecker+Invalid, 6825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 5579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:15,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3348 Valid, 4261 Invalid, 6825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 5579 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-28 00:54:15,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2021-12-28 00:54:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 853. [2021-12-28 00:54:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 679 states have (on average 1.6244477172312224) internal successors, (1103), 687 states have internal predecessors, (1103), 147 states have call successors, (147), 22 states have call predecessors, (147), 26 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2021-12-28 00:54:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1418 transitions. [2021-12-28 00:54:15,527 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1418 transitions. Word has length 115 [2021-12-28 00:54:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:15,528 INFO L470 AbstractCegarLoop]: Abstraction has 853 states and 1418 transitions. [2021-12-28 00:54:15,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-28 00:54:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1418 transitions. [2021-12-28 00:54:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 00:54:15,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:15,531 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:15,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:15,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:15,749 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:15,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:15,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1757058345, now seen corresponding path program 1 times [2021-12-28 00:54:15,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:15,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831841858] [2021-12-28 00:54:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:15,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:54:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:54:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:54:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:15,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:15,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831841858] [2021-12-28 00:54:15,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831841858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:15,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:15,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:15,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619618855] [2021-12-28 00:54:15,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:15,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:15,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:15,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:15,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:15,828 INFO L87 Difference]: Start difference. First operand 853 states and 1418 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:16,786 INFO L93 Difference]: Finished difference Result 2138 states and 3646 transitions. [2021-12-28 00:54:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:16,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-28 00:54:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:16,792 INFO L225 Difference]: With dead ends: 2138 [2021-12-28 00:54:16,792 INFO L226 Difference]: Without dead ends: 1363 [2021-12-28 00:54:16,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:16,795 INFO L933 BasicCegarLoop]: 645 mSDtfsCounter, 1302 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:16,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1320 Valid, 1433 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:16,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2021-12-28 00:54:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1243. [2021-12-28 00:54:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 990 states have (on average 1.6393939393939394) internal successors, (1623), 998 states have internal predecessors, (1623), 226 states have call successors, (226), 22 states have call predecessors, (226), 26 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2021-12-28 00:54:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2106 transitions. [2021-12-28 00:54:16,850 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2106 transitions. Word has length 118 [2021-12-28 00:54:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:16,851 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 2106 transitions. [2021-12-28 00:54:16,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:16,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2106 transitions. [2021-12-28 00:54:16,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 00:54:16,854 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:16,855 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:16,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 00:54:16,855 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:16,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1275391994, now seen corresponding path program 1 times [2021-12-28 00:54:16,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:16,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189467208] [2021-12-28 00:54:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:16,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:54:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:54:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:54:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:16,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:16,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189467208] [2021-12-28 00:54:16,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189467208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:16,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:16,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:16,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391745302] [2021-12-28 00:54:16,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:16,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:16,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:16,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:16,930 INFO L87 Difference]: Start difference. First operand 1243 states and 2106 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:17,847 INFO L93 Difference]: Finished difference Result 3112 states and 5355 transitions. [2021-12-28 00:54:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:17,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-28 00:54:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:17,857 INFO L225 Difference]: With dead ends: 3112 [2021-12-28 00:54:17,857 INFO L226 Difference]: Without dead ends: 2000 [2021-12-28 00:54:17,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:17,861 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1302 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:17,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 1393 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:17,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2021-12-28 00:54:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1880. [2021-12-28 00:54:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1508 states have (on average 1.6452254641909814) internal successors, (2481), 1516 states have internal predecessors, (2481), 345 states have call successors, (345), 22 states have call predecessors, (345), 26 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2021-12-28 00:54:17,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 3202 transitions. [2021-12-28 00:54:17,967 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 3202 transitions. Word has length 119 [2021-12-28 00:54:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:17,967 INFO L470 AbstractCegarLoop]: Abstraction has 1880 states and 3202 transitions. [2021-12-28 00:54:17,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:17,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 3202 transitions. [2021-12-28 00:54:17,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 00:54:17,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:17,974 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:17,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:54:17,975 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:17,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:17,975 INFO L85 PathProgramCache]: Analyzing trace with hash -319840837, now seen corresponding path program 1 times [2021-12-28 00:54:17,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:17,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578727841] [2021-12-28 00:54:17,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:17,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:54:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:54:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:54:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:54:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:18,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:18,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578727841] [2021-12-28 00:54:18,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578727841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:18,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:18,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:18,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757240383] [2021-12-28 00:54:18,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:18,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:18,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:18,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:18,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:18,050 INFO L87 Difference]: Start difference. First operand 1880 states and 3202 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:19,010 INFO L93 Difference]: Finished difference Result 4592 states and 7966 transitions. [2021-12-28 00:54:19,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:19,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-28 00:54:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:19,023 INFO L225 Difference]: With dead ends: 4592 [2021-12-28 00:54:19,024 INFO L226 Difference]: Without dead ends: 2978 [2021-12-28 00:54:19,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:19,030 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 1300 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:19,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 1395 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-12-28 00:54:19,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2858. [2021-12-28 00:54:19,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 2324 states have (on average 1.6501721170395869) internal successors, (3835), 2332 states have internal predecessors, (3835), 507 states have call successors, (507), 22 states have call predecessors, (507), 26 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2021-12-28 00:54:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 4896 transitions. [2021-12-28 00:54:19,188 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 4896 transitions. Word has length 120 [2021-12-28 00:54:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:19,189 INFO L470 AbstractCegarLoop]: Abstraction has 2858 states and 4896 transitions. [2021-12-28 00:54:19,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:19,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 4896 transitions. [2021-12-28 00:54:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 00:54:19,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:19,196 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:19,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:54:19,196 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:19,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:19,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1011408487, now seen corresponding path program 1 times [2021-12-28 00:54:19,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:19,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875123073] [2021-12-28 00:54:19,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:19,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:54:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:54:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:54:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:54:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:19,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:19,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875123073] [2021-12-28 00:54:19,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875123073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:19,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:19,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:19,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259190257] [2021-12-28 00:54:19,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:19,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:19,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:19,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:19,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:19,263 INFO L87 Difference]: Start difference. First operand 2858 states and 4896 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:20,285 INFO L93 Difference]: Finished difference Result 6931 states and 12101 transitions. [2021-12-28 00:54:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:20,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-28 00:54:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:20,305 INFO L225 Difference]: With dead ends: 6931 [2021-12-28 00:54:20,306 INFO L226 Difference]: Without dead ends: 4558 [2021-12-28 00:54:20,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:20,316 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 1295 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:20,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 1397 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:20,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4558 states. [2021-12-28 00:54:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4558 to 4438. [2021-12-28 00:54:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 3659 states have (on average 1.6537305274665208) internal successors, (6051), 3667 states have internal predecessors, (6051), 752 states have call successors, (752), 22 states have call predecessors, (752), 26 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2021-12-28 00:54:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 7628 transitions. [2021-12-28 00:54:20,538 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 7628 transitions. Word has length 121 [2021-12-28 00:54:20,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:20,538 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 7628 transitions. [2021-12-28 00:54:20,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:20,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 7628 transitions. [2021-12-28 00:54:20,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-28 00:54:20,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:20,547 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:20,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:54:20,548 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:20,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:20,548 INFO L85 PathProgramCache]: Analyzing trace with hash -166887201, now seen corresponding path program 1 times [2021-12-28 00:54:20,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:20,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913213213] [2021-12-28 00:54:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:20,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:54:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:54:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:54:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:54:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:20,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:20,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913213213] [2021-12-28 00:54:20,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913213213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:20,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:20,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:20,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436434519] [2021-12-28 00:54:20,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:20,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:20,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:20,651 INFO L87 Difference]: Start difference. First operand 4438 states and 7628 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:21,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:21,796 INFO L93 Difference]: Finished difference Result 11102 states and 19430 transitions. [2021-12-28 00:54:21,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:21,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-28 00:54:21,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:21,841 INFO L225 Difference]: With dead ends: 11102 [2021-12-28 00:54:21,841 INFO L226 Difference]: Without dead ends: 7401 [2021-12-28 00:54:21,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:21,855 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 1292 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:21,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 1421 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:21,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2021-12-28 00:54:22,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7281. [2021-12-28 00:54:22,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7281 states, 6009 states have (on average 1.6491928773506408) internal successors, (9910), 6017 states have internal predecessors, (9910), 1245 states have call successors, (1245), 22 states have call predecessors, (1245), 26 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2021-12-28 00:54:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7281 states to 7281 states and 12517 transitions. [2021-12-28 00:54:22,220 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 12517 transitions. Word has length 122 [2021-12-28 00:54:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:22,221 INFO L470 AbstractCegarLoop]: Abstraction has 7281 states and 12517 transitions. [2021-12-28 00:54:22,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 12517 transitions. [2021-12-28 00:54:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:54:22,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:22,234 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:22,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:54:22,234 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:22,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash 823731829, now seen corresponding path program 1 times [2021-12-28 00:54:22,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:22,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036138535] [2021-12-28 00:54:22,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:22,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:54:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:54:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:54:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:54:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:22,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:22,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036138535] [2021-12-28 00:54:22,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036138535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:22,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:22,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:22,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342174883] [2021-12-28 00:54:22,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:22,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:22,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:22,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:22,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:22,308 INFO L87 Difference]: Start difference. First operand 7281 states and 12517 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:23,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:23,580 INFO L93 Difference]: Finished difference Result 18522 states and 32394 transitions. [2021-12-28 00:54:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:23,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-28 00:54:23,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:23,653 INFO L225 Difference]: With dead ends: 18522 [2021-12-28 00:54:23,653 INFO L226 Difference]: Without dead ends: 12380 [2021-12-28 00:54:23,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:23,670 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 1295 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:23,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1314 Valid, 1396 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:23,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12380 states. [2021-12-28 00:54:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12380 to 12260. [2021-12-28 00:54:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12260 states, 10166 states have (on average 1.6487310643320874) internal successors, (16761), 10174 states have internal predecessors, (16761), 2067 states have call successors, (2067), 22 states have call predecessors, (2067), 26 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2021-12-28 00:54:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 21090 transitions. [2021-12-28 00:54:24,265 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 21090 transitions. Word has length 123 [2021-12-28 00:54:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:24,265 INFO L470 AbstractCegarLoop]: Abstraction has 12260 states and 21090 transitions. [2021-12-28 00:54:24,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 21090 transitions. [2021-12-28 00:54:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:54:24,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:24,289 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:24,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:54:24,289 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:24,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:24,290 INFO L85 PathProgramCache]: Analyzing trace with hash 589848829, now seen corresponding path program 1 times [2021-12-28 00:54:24,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:24,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350894224] [2021-12-28 00:54:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:24,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:54:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:54:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:54:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:54:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:54:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:24,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:24,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350894224] [2021-12-28 00:54:24,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350894224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:24,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:24,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:24,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948286273] [2021-12-28 00:54:24,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:24,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:24,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:24,366 INFO L87 Difference]: Start difference. First operand 12260 states and 21090 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:25,965 INFO L93 Difference]: Finished difference Result 29480 states and 51254 transitions. [2021-12-28 00:54:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:25,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-28 00:54:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:26,043 INFO L225 Difference]: With dead ends: 29480 [2021-12-28 00:54:26,044 INFO L226 Difference]: Without dead ends: 19333 [2021-12-28 00:54:26,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:26,075 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 1292 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:26,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 1399 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19333 states. [2021-12-28 00:54:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19333 to 19213. [2021-12-28 00:54:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19213 states, 15916 states have (on average 1.6229580296556925) internal successors, (25831), 15924 states have internal predecessors, (25831), 3270 states have call successors, (3270), 22 states have call predecessors, (3270), 26 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2021-12-28 00:54:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19213 states to 19213 states and 32710 transitions. [2021-12-28 00:54:27,133 INFO L78 Accepts]: Start accepts. Automaton has 19213 states and 32710 transitions. Word has length 124 [2021-12-28 00:54:27,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:27,134 INFO L470 AbstractCegarLoop]: Abstraction has 19213 states and 32710 transitions. [2021-12-28 00:54:27,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:27,134 INFO L276 IsEmpty]: Start isEmpty. Operand 19213 states and 32710 transitions. [2021-12-28 00:54:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-28 00:54:27,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:27,150 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:27,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:54:27,150 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:27,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2091153292, now seen corresponding path program 1 times [2021-12-28 00:54:27,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990581700] [2021-12-28 00:54:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:27,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:54:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:54:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:54:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:54:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:54:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:27,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:27,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990581700] [2021-12-28 00:54:27,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990581700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:27,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:27,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:27,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278369456] [2021-12-28 00:54:27,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:27,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:27,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:27,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:27,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:27,213 INFO L87 Difference]: Start difference. First operand 19213 states and 32710 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:29,413 INFO L93 Difference]: Finished difference Result 50912 states and 88172 transitions. [2021-12-28 00:54:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:29,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-12-28 00:54:29,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:29,524 INFO L225 Difference]: With dead ends: 50912 [2021-12-28 00:54:29,524 INFO L226 Difference]: Without dead ends: 34454 [2021-12-28 00:54:29,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:29,560 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 1290 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:29,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 1398 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:54:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34454 states. [2021-12-28 00:54:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34454 to 34334. [2021-12-28 00:54:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34334 states, 28587 states have (on average 1.6195123657606605) internal successors, (46297), 28595 states have internal predecessors, (46297), 5720 states have call successors, (5720), 22 states have call predecessors, (5720), 26 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2021-12-28 00:54:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34334 states to 34334 states and 58350 transitions. [2021-12-28 00:54:31,370 INFO L78 Accepts]: Start accepts. Automaton has 34334 states and 58350 transitions. Word has length 125 [2021-12-28 00:54:31,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:31,371 INFO L470 AbstractCegarLoop]: Abstraction has 34334 states and 58350 transitions. [2021-12-28 00:54:31,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:31,371 INFO L276 IsEmpty]: Start isEmpty. Operand 34334 states and 58350 transitions. [2021-12-28 00:54:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-28 00:54:31,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:31,396 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:31,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:54:31,396 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:31,397 INFO L85 PathProgramCache]: Analyzing trace with hash -870526205, now seen corresponding path program 1 times [2021-12-28 00:54:31,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:31,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648385282] [2021-12-28 00:54:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:31,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:54:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:54:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:54:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:54:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:54:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:31,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648385282] [2021-12-28 00:54:31,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648385282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:31,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:31,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:31,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907750300] [2021-12-28 00:54:31,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:31,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:31,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:31,484 INFO L87 Difference]: Start difference. First operand 34334 states and 58350 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:34,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:34,676 INFO L93 Difference]: Finished difference Result 93784 states and 161571 transitions. [2021-12-28 00:54:34,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:34,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 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 126 [2021-12-28 00:54:34,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:34,918 INFO L225 Difference]: With dead ends: 93784 [2021-12-28 00:54:34,919 INFO L226 Difference]: Without dead ends: 63121 [2021-12-28 00:54:35,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:35,010 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 1286 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:35,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 1399 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:54:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63121 states. [2021-12-28 00:54:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63121 to 63001. [2021-12-28 00:54:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63001 states, 52741 states have (on average 1.6151002066703324) internal successors, (85182), 52749 states have internal predecessors, (85182), 10233 states have call successors, (10233), 22 states have call predecessors, (10233), 26 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2021-12-28 00:54:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63001 states to 63001 states and 106793 transitions. [2021-12-28 00:54:38,717 INFO L78 Accepts]: Start accepts. Automaton has 63001 states and 106793 transitions. Word has length 126 [2021-12-28 00:54:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:38,717 INFO L470 AbstractCegarLoop]: Abstraction has 63001 states and 106793 transitions. [2021-12-28 00:54:38,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:38,717 INFO L276 IsEmpty]: Start isEmpty. Operand 63001 states and 106793 transitions. [2021-12-28 00:54:38,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-28 00:54:38,738 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:38,739 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:38,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:54:38,739 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:38,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:38,739 INFO L85 PathProgramCache]: Analyzing trace with hash 540084212, now seen corresponding path program 1 times [2021-12-28 00:54:38,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:38,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954188271] [2021-12-28 00:54:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:38,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:54:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:54:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:54:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:38,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:38,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954188271] [2021-12-28 00:54:38,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954188271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:38,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:38,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:38,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365542449] [2021-12-28 00:54:38,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:38,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:38,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:38,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:38,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:38,804 INFO L87 Difference]: Start difference. First operand 63001 states and 106793 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:43,939 INFO L93 Difference]: Finished difference Result 118160 states and 203948 transitions. [2021-12-28 00:54:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:43,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-12-28 00:54:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:44,390 INFO L225 Difference]: With dead ends: 118160 [2021-12-28 00:54:44,391 INFO L226 Difference]: Without dead ends: 117994 [2021-12-28 00:54:44,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:44,442 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 1284 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:44,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 1400 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:54:44,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117994 states. [2021-12-28 00:54:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117994 to 117874. [2021-12-28 00:54:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117874 states, 99246 states have (on average 1.6096366604195635) internal successors, (159750), 99254 states have internal predecessors, (159750), 18601 states have call successors, (18601), 22 states have call predecessors, (18601), 26 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792) [2021-12-28 00:54:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117874 states to 117874 states and 199143 transitions. [2021-12-28 00:54:50,759 INFO L78 Accepts]: Start accepts. Automaton has 117874 states and 199143 transitions. Word has length 127 [2021-12-28 00:54:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:50,759 INFO L470 AbstractCegarLoop]: Abstraction has 117874 states and 199143 transitions. [2021-12-28 00:54:50,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 117874 states and 199143 transitions. [2021-12-28 00:54:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-28 00:54:50,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:50,811 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:54:50,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:54:50,827 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2021595268, now seen corresponding path program 1 times [2021-12-28 00:54:50,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:50,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894453605] [2021-12-28 00:54:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:50,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:54:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:54:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:54:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:51,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:51,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894453605] [2021-12-28 00:54:51,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894453605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:51,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:51,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-28 00:54:51,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750946296] [2021-12-28 00:54:51,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:51,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-28 00:54:51,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:51,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-28 00:54:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:54:51,063 INFO L87 Difference]: Start difference. First operand 117874 states and 199143 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12)