./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:44:27,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:44:27,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:44:27,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:44:27,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:44:27,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:44:27,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:44:27,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:44:27,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:44:27,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:44:27,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:44:27,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:44:27,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:44:27,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:44:27,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:44:27,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:44:27,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:44:27,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:44:27,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:44:27,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:44:27,476 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:44:27,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:44:27,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:44:27,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:44:27,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:44:27,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:44:27,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:44:27,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:44:27,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:44:27,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:44:27,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:44:27,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:44:27,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:44:27,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:44:27,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:44:27,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:44:27,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:44:27,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:44:27,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:44:27,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:44:27,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:44:27,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:44:27,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:44:27,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:44:27,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:44:27,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:44:27,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:44:27,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:44:27,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:44:27,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:44:27,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:44:27,520 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:44:27,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:44:27,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:44:27,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:44:27,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:44:27,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:44:27,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:44:27,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:44:27,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:44:27,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:44:27,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:44:27,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:44:27,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:44:27,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:44:27,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:44:27,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:44:27,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:44:27,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:44:27,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:44:27,525 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:44:27,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:44:27,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:44:27,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-12 12:44:27,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:44:27,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:44:27,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:44:27,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:44:27,741 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:44:27,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-12 12:44:27,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0e93878a/079d77f2c348455386a8cf5807e297eb/FLAG714509095 [2022-07-12 12:44:28,419 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:44:28,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-12 12:44:28,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0e93878a/079d77f2c348455386a8cf5807e297eb/FLAG714509095 [2022-07-12 12:44:28,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0e93878a/079d77f2c348455386a8cf5807e297eb [2022-07-12 12:44:28,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:44:28,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:44:28,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:44:28,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:44:28,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:44:28,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:44:28" (1/1) ... [2022-07-12 12:44:28,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a50df2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:28, skipping insertion in model container [2022-07-12 12:44:28,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:44:28" (1/1) ... [2022-07-12 12:44:28,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:44:28,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:44:29,391 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-12 12:44:29,391 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-12 12:44:29,882 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-12 12:44:31,021 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 12:44:31,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:44:31,099 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:44:31,181 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-12 12:44:31,182 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-12 12:44:31,195 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-12 12:44:31,323 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 12:44:31,331 INFO L158 Benchmark]: Toolchain (without parser) took 2489.97ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 100.2MB in the beginning and 76.2MB in the end (delta: 24.1MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2022-07-12 12:44:31,332 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:44:31,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2473.05ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 100.2MB in the beginning and 76.2MB in the end (delta: 24.1MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2022-07-12 12:44:31,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2473.05ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 100.2MB in the beginning and 76.2MB in the end (delta: 24.1MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 64bit --witnessprinter.graph.data.programhash fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:44:32,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:44:32,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:44:32,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:44:32,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:44:32,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:44:32,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:44:32,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:44:32,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:44:32,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:44:32,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:44:32,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:44:32,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:44:32,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:44:32,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:44:32,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:44:32,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:44:32,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:44:32,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:44:32,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:44:32,948 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:44:32,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:44:32,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:44:32,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:44:32,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:44:32,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:44:32,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:44:32,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:44:32,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:44:32,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:44:32,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:44:32,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:44:32,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:44:32,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:44:32,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:44:32,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:44:32,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:44:32,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:44:32,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:44:32,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:44:32,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:44:32,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:44:32,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:44:32,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:44:32,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:44:32,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:44:32,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:44:32,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:44:32,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:44:32,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:44:32,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:44:32,978 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:44:32,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:44:32,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:44:32,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:44:32,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:44:32,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:44:32,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:44:32,979 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:44:32,980 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:44:32,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:44:32,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:44:32,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:44:32,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:44:32,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:44:32,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:44:32,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:44:32,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:44:32,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:44:32,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:44:32,981 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:44:32,981 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:44:32,981 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:44:32,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:44:32,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:44:32,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:44:32,982 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-12 12:44:33,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:44:33,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:44:33,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:44:33,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:44:33,236 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:44:33,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-12 12:44:33,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f0aab51/77114fee48dc4a4499315de91233cf2a/FLAG7fd17d352 [2022-07-12 12:44:33,925 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:44:33,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-12 12:44:33,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f0aab51/77114fee48dc4a4499315de91233cf2a/FLAG7fd17d352 [2022-07-12 12:44:34,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60f0aab51/77114fee48dc4a4499315de91233cf2a [2022-07-12 12:44:34,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:44:34,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:44:34,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:44:34,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:44:34,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:44:34,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:44:34" (1/1) ... [2022-07-12 12:44:34,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240cbd41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:34, skipping insertion in model container [2022-07-12 12:44:34,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:44:34" (1/1) ... [2022-07-12 12:44:34,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:44:34,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:44:34,664 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-12 12:44:34,664 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-12 12:44:35,335 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-12 12:44:36,813 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 12:44:36,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:44:36,892 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:44:36,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:44:37,032 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-12 12:44:37,033 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-12 12:44:37,044 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-12 12:44:37,216 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 12:44:37,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:44:37,245 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:44:37,339 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-12 12:44:37,339 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-12 12:44:37,353 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/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-12 12:44:37,759 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 12:44:37,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:44:37,872 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:44:37,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37 WrapperNode [2022-07-12 12:44:37,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:44:37,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:44:37,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:44:37,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:44:37,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:37,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,124 INFO L137 Inliner]: procedures = 468, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7021 [2022-07-12 12:44:38,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:44:38,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:44:38,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:44:38,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:44:38,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:44:38,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:44:38,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:44:38,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:44:38,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (1/1) ... [2022-07-12 12:44:38,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:44:38,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:44:38,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 12:44:38,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 12:44:38,431 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 12:44:38,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 12:44:38,431 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 12:44:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-07-12 12:44:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-07-12 12:44:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-07-12 12:44:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-07-12 12:44:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-12 12:44:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-12 12:44:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-07-12 12:44:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-07-12 12:44:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 12:44:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 12:44:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-07-12 12:44:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-07-12 12:44:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 12:44:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 12:44:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:44:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:44:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-07-12 12:44:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-07-12 12:44:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-07-12 12:44:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-07-12 12:44:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-07-12 12:44:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-07-12 12:44:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-12 12:44:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-12 12:44:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-07-12 12:44:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-07-12 12:44:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-07-12 12:44:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-07-12 12:44:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-07-12 12:44:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-07-12 12:44:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-07-12 12:44:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-07-12 12:44:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-07-12 12:44:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-07-12 12:44:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-07-12 12:44:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-07-12 12:44:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:44:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:44:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-12 12:44:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-12 12:44:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-07-12 12:44:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-07-12 12:44:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-12 12:44:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-12 12:44:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-07-12 12:44:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-07-12 12:44:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 12:44:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-07-12 12:44:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-07-12 12:44:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 12:44:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-12 12:44:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-12 12:44:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-07-12 12:44:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-07-12 12:44:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-12 12:44:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:44:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-07-12 12:44:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-07-12 12:44:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:44:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-07-12 12:44:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-07-12 12:44:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-07-12 12:44:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-07-12 12:44:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:44:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:44:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-07-12 12:44:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-07-12 12:44:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-07-12 12:44:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-07-12 12:44:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:44:38,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:44:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-07-12 12:44:38,440 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-07-12 12:44:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-07-12 12:44:38,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-07-12 12:44:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-07-12 12:44:38,440 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-07-12 12:44:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:44:38,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:44:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-07-12 12:44:38,441 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-07-12 12:44:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-07-12 12:44:38,441 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-07-12 12:44:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-07-12 12:44:38,441 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-07-12 12:44:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:44:38,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:44:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-12 12:44:38,442 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-12 12:44:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-12 12:44:38,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-12 12:44:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-07-12 12:44:38,442 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-07-12 12:44:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-07-12 12:44:38,442 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-07-12 12:44:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-12 12:44:38,443 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-12 12:44:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 12:44:38,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 12:44:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-07-12 12:44:38,443 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-07-12 12:44:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-07-12 12:44:38,443 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-07-12 12:44:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-07-12 12:44:38,444 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-07-12 12:44:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-12 12:44:38,444 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-12 12:44:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-12 12:44:38,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-12 12:44:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-07-12 12:44:38,444 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-07-12 12:44:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-07-12 12:44:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-07-12 12:44:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-12 12:44:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-12 12:44:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-07-12 12:44:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-07-12 12:44:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-07-12 12:44:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-07-12 12:44:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-07-12 12:44:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-07-12 12:44:38,446 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 12:44:38,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:44:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:44:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:44:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:44:38,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:44:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:44:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-07-12 12:44:38,447 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-07-12 12:44:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-07-12 12:44:38,447 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-07-12 12:44:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-07-12 12:44:38,447 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-07-12 12:44:38,448 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-07-12 12:44:38,448 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-07-12 12:44:38,448 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 12:44:38,448 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 12:44:38,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-12 12:44:38,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-12 12:44:38,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-07-12 12:44:38,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-07-12 12:44:38,448 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:44:38,449 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:44:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 12:44:38,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 12:44:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-07-12 12:44:38,449 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-07-12 12:44:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-07-12 12:44:38,449 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-07-12 12:44:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 12:44:38,449 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 12:44:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-12 12:44:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-12 12:44:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:44:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-07-12 12:44:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-07-12 12:44:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-07-12 12:44:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-07-12 12:44:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-07-12 12:44:38,450 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-07-12 12:44:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 12:44:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 12:44:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:44:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:44:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:44:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:44:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:44:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-07-12 12:44:38,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-07-12 12:44:38,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-12 12:44:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-12 12:44:38,452 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:44:38,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-12 12:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-12 12:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 12:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 12:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-07-12 12:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-07-12 12:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-07-12 12:44:38,453 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-07-12 12:44:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-07-12 12:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-07-12 12:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-07-12 12:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-07-12 12:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-12 12:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-12 12:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-12 12:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-12 12:44:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:44:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:44:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:44:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:44:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-07-12 12:44:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-07-12 12:44:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-07-12 12:44:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-07-12 12:44:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-07-12 12:44:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-07-12 12:44:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 12:44:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 12:44:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:44:38,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:44:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-07-12 12:44:38,456 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-07-12 12:44:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-07-12 12:44:38,456 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-07-12 12:44:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:44:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:44:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-07-12 12:44:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-12 12:44:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-12 12:44:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-07-12 12:44:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-07-12 12:44:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 12:44:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 12:44:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-07-12 12:44:38,532 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-07-12 12:44:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-07-12 12:44:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-07-12 12:44:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 12:44:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 12:44:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-07-12 12:44:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-07-12 12:44:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-12 12:44:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-12 12:44:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-07-12 12:44:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-07-12 12:44:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-07-12 12:44:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-07-12 12:44:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 12:44:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 12:44:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-07-12 12:44:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-07-12 12:44:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-07-12 12:44:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-07-12 12:44:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-07-12 12:44:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-07-12 12:44:39,301 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:44:39,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:44:39,534 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:45:03,207 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:45:03,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:45:03,242 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 12:45:03,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:45:03 BoogieIcfgContainer [2022-07-12 12:45:03,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:45:03,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:45:03,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:45:03,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:45:03,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:44:34" (1/3) ... [2022-07-12 12:45:03,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913586b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:45:03, skipping insertion in model container [2022-07-12 12:45:03,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:44:37" (2/3) ... [2022-07-12 12:45:03,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913586b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:45:03, skipping insertion in model container [2022-07-12 12:45:03,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:45:03" (3/3) ... [2022-07-12 12:45:03,257 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-12 12:45:03,270 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:45:03,270 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:45:03,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:45:03,369 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@aad5bf1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70f26a5c [2022-07-12 12:45:03,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:45:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) [2022-07-12 12:45:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-12 12:45:03,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:03,423 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:03,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2022-07-12 12:45:03,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:03,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226343897] [2022-07-12 12:45:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:03,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:03,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:03,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:03,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:45:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:05,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:45:05,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-12 12:45:05,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:45:05,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:45:05,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226343897] [2022-07-12 12:45:05,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226343897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:45:05,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:45:05,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:45:05,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541535459] [2022-07-12 12:45:05,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:45:05,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:45:05,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:45:05,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:45:05,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:05,374 INFO L87 Difference]: Start difference. First operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 12:45:05,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:45:05,932 INFO L93 Difference]: Finished difference Result 8008 states and 11636 transitions. [2022-07-12 12:45:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:45:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2022-07-12 12:45:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:45:05,978 INFO L225 Difference]: With dead ends: 8008 [2022-07-12 12:45:05,979 INFO L226 Difference]: Without dead ends: 5221 [2022-07-12 12:45:05,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:06,003 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 3688 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 8333 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:45:06,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3688 Valid, 8333 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:45:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-07-12 12:45:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5216. [2022-07-12 12:45:06,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 3608 states have (on average 1.3450665188470066) internal successors, (4853), 3783 states have internal predecessors, (4853), 1299 states have call successors, (1299), 309 states have call predecessors, (1299), 308 states have return successors, (1298), 1269 states have call predecessors, (1298), 1298 states have call successors, (1298) [2022-07-12 12:45:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7450 transitions. [2022-07-12 12:45:06,233 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7450 transitions. Word has length 213 [2022-07-12 12:45:06,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:45:06,236 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7450 transitions. [2022-07-12 12:45:06,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 12:45:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7450 transitions. [2022-07-12 12:45:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-12 12:45:06,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:06,244 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:06,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:45:06,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:45:06,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:06,468 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2022-07-12 12:45:06,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:06,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953073169] [2022-07-12 12:45:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:06,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:06,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:06,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:45:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:08,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:45:08,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-12 12:45:08,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:45:08,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:45:08,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953073169] [2022-07-12 12:45:08,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953073169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:45:08,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:45:08,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:45:08,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976848032] [2022-07-12 12:45:08,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:45:08,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:45:08,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:45:08,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:45:08,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:08,428 INFO L87 Difference]: Start difference. First operand 5216 states and 7450 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 12:45:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:45:08,948 INFO L93 Difference]: Finished difference Result 14791 states and 21009 transitions. [2022-07-12 12:45:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:45:08,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2022-07-12 12:45:08,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:45:09,004 INFO L225 Difference]: With dead ends: 14791 [2022-07-12 12:45:09,005 INFO L226 Difference]: Without dead ends: 9634 [2022-07-12 12:45:09,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:09,031 INFO L413 NwaCegarLoop]: 4605 mSDtfsCounter, 3287 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 8353 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:45:09,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3287 Valid, 8353 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 12:45:09,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9634 states. [2022-07-12 12:45:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9634 to 9627. [2022-07-12 12:45:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9627 states, 6657 states have (on average 1.3406940063091484) internal successors, (8925), 6996 states have internal predecessors, (8925), 2357 states have call successors, (2357), 613 states have call predecessors, (2357), 612 states have return successors, (2356), 2301 states have call predecessors, (2356), 2356 states have call successors, (2356) [2022-07-12 12:45:09,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2022-07-12 12:45:09,313 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 214 [2022-07-12 12:45:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:45:09,313 INFO L495 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2022-07-12 12:45:09,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 12:45:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2022-07-12 12:45:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-12 12:45:09,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:09,318 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:09,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:45:09,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:45:09,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2022-07-12 12:45:09,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:09,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166103720] [2022-07-12 12:45:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:09,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:09,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:09,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:09,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:45:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:11,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:45:11,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-12 12:45:11,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:45:11,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:45:11,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166103720] [2022-07-12 12:45:11,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166103720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:45:11,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:45:11,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:45:11,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518999281] [2022-07-12 12:45:11,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:45:11,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:45:11,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:45:11,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:45:11,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:11,390 INFO L87 Difference]: Start difference. First operand 9627 states and 13638 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 12:45:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:45:12,116 INFO L93 Difference]: Finished difference Result 26193 states and 36968 transitions. [2022-07-12 12:45:12,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:45:12,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 220 [2022-07-12 12:45:12,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:45:12,224 INFO L225 Difference]: With dead ends: 26193 [2022-07-12 12:45:12,224 INFO L226 Difference]: Without dead ends: 16625 [2022-07-12 12:45:12,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:12,274 INFO L413 NwaCegarLoop]: 6635 mSDtfsCounter, 3670 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 10383 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:45:12,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 10383 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 12:45:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16625 states. [2022-07-12 12:45:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16625 to 16622. [2022-07-12 12:45:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16622 states, 11543 states have (on average 1.3377804730139478) internal successors, (15442), 12127 states have internal predecessors, (15442), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-07-12 12:45:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2022-07-12 12:45:12,979 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2022-07-12 12:45:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:45:12,980 INFO L495 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2022-07-12 12:45:12,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 12:45:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2022-07-12 12:45:12,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-07-12 12:45:12,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:12,997 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:13,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:45:13,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:45:13,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:13,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1196821462, now seen corresponding path program 1 times [2022-07-12 12:45:13,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:13,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326032679] [2022-07-12 12:45:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:13,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:13,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:13,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:13,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:45:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:15,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:45:15,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4908 backedges. 2468 proven. 0 refuted. 0 times theorem prover too weak. 2440 trivial. 0 not checked. [2022-07-12 12:45:15,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:45:15,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:45:15,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326032679] [2022-07-12 12:45:15,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326032679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:45:15,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:45:15,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:45:15,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165313642] [2022-07-12 12:45:15,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:45:15,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:45:15,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:45:15,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:45:15,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:45:15,410 INFO L87 Difference]: Start difference. First operand 16622 states and 23411 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-12 12:45:17,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:45:18,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:45:18,181 INFO L93 Difference]: Finished difference Result 33209 states and 46764 transitions. [2022-07-12 12:45:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:45:18,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 370 [2022-07-12 12:45:18,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:45:18,248 INFO L225 Difference]: With dead ends: 33209 [2022-07-12 12:45:18,249 INFO L226 Difference]: Without dead ends: 16615 [2022-07-12 12:45:18,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:45:18,294 INFO L413 NwaCegarLoop]: 3886 mSDtfsCounter, 6 mSDsluCounter, 11653 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15539 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:45:18,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15539 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 12:45:18,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16615 states. [2022-07-12 12:45:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16615 to 16587. [2022-07-12 12:45:18,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16587 states, 11508 states have (on average 1.3374174487313173) internal successors, (15391), 12092 states have internal predecessors, (15391), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-07-12 12:45:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16587 states to 16587 states and 23360 transitions. [2022-07-12 12:45:18,877 INFO L78 Accepts]: Start accepts. Automaton has 16587 states and 23360 transitions. Word has length 370 [2022-07-12 12:45:18,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:45:18,877 INFO L495 AbstractCegarLoop]: Abstraction has 16587 states and 23360 transitions. [2022-07-12 12:45:18,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-12 12:45:18,878 INFO L276 IsEmpty]: Start isEmpty. Operand 16587 states and 23360 transitions. [2022-07-12 12:45:18,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-12 12:45:18,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:18,893 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:18,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 12:45:19,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:45:19,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:19,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:19,120 INFO L85 PathProgramCache]: Analyzing trace with hash 41778221, now seen corresponding path program 1 times [2022-07-12 12:45:19,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:19,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251257963] [2022-07-12 12:45:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:19,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:19,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:19,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:19,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:45:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:21,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 12:45:21,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-07-12 12:45:23,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:45:23,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:45:23,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251257963] [2022-07-12 12:45:23,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251257963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:45:23,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:45:23,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:45:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835147730] [2022-07-12 12:45:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:45:23,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:45:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:45:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:45:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:23,190 INFO L87 Difference]: Start difference. First operand 16587 states and 23360 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-07-12 12:45:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:45:23,654 INFO L93 Difference]: Finished difference Result 27677 states and 38870 transitions. [2022-07-12 12:45:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:45:23,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 371 [2022-07-12 12:45:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:45:23,824 INFO L225 Difference]: With dead ends: 27677 [2022-07-12 12:45:23,825 INFO L226 Difference]: Without dead ends: 27674 [2022-07-12 12:45:23,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:45:23,848 INFO L413 NwaCegarLoop]: 4634 mSDtfsCounter, 2951 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 7903 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:45:23,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 7903 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:45:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27674 states. [2022-07-12 12:45:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27674 to 27192. [2022-07-12 12:45:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27192 states, 19243 states have (on average 1.3444369381073638) internal successors, (25871), 20094 states have internal predecessors, (25871), 5996 states have call successors, (5996), 1964 states have call predecessors, (5996), 1952 states have return successors, (6192), 5814 states have call predecessors, (6192), 5995 states have call successors, (6192) [2022-07-12 12:45:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 38059 transitions. [2022-07-12 12:45:24,759 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 38059 transitions. Word has length 371 [2022-07-12 12:45:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:45:24,762 INFO L495 AbstractCegarLoop]: Abstraction has 27192 states and 38059 transitions. [2022-07-12 12:45:24,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-07-12 12:45:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 38059 transitions. [2022-07-12 12:45:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-12 12:45:24,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:24,809 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:24,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:45:25,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:45:25,023 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:25,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash -810105328, now seen corresponding path program 1 times [2022-07-12 12:45:25,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:25,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516685512] [2022-07-12 12:45:25,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:25,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:25,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:25,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:45:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:27,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 12:45:27,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-07-12 12:45:27,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:45:27,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:45:27,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516685512] [2022-07-12 12:45:27,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516685512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:45:27,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:45:27,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:45:27,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539317407] [2022-07-12 12:45:27,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:45:27,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:45:27,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:45:27,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:45:27,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:45:27,450 INFO L87 Difference]: Start difference. First operand 27192 states and 38059 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-12 12:45:29,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:45:32,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:45:32,096 INFO L93 Difference]: Finished difference Result 81456 states and 113995 transitions. [2022-07-12 12:45:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:45:32,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 397 [2022-07-12 12:45:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:45:32,383 INFO L225 Difference]: With dead ends: 81456 [2022-07-12 12:45:32,383 INFO L226 Difference]: Without dead ends: 54332 [2022-07-12 12:45:32,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:45:32,474 INFO L413 NwaCegarLoop]: 7369 mSDtfsCounter, 4408 mSDsluCounter, 10513 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 365 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 17882 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:45:32,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 17882 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 12:45:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54332 states. [2022-07-12 12:45:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54332 to 54305. [2022-07-12 12:45:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54305 states, 38441 states have (on average 1.34439790848313) internal successors, (51680), 40151 states have internal predecessors, (51680), 11960 states have call successors, (11960), 3926 states have call predecessors, (11960), 3903 states have return successors, (12353), 11589 states have call predecessors, (12353), 11959 states have call successors, (12353) [2022-07-12 12:45:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54305 states to 54305 states and 75993 transitions. [2022-07-12 12:45:34,305 INFO L78 Accepts]: Start accepts. Automaton has 54305 states and 75993 transitions. Word has length 397 [2022-07-12 12:45:34,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:45:34,306 INFO L495 AbstractCegarLoop]: Abstraction has 54305 states and 75993 transitions. [2022-07-12 12:45:34,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-12 12:45:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 54305 states and 75993 transitions. [2022-07-12 12:45:34,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-07-12 12:45:34,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:45:34,597 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:45:34,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-12 12:45:34,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:45:34,799 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:45:34,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:45:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash -955879295, now seen corresponding path program 1 times [2022-07-12 12:45:34,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:45:34,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222829229] [2022-07-12 12:45:34,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:45:34,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:45:34,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:45:34,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:45:34,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:45:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:45:37,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-12 12:45:37,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:45:42,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2022-07-12 12:45:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 1781 proven. 30 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2022-07-12 12:45:43,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:45:44,419 INFO L356 Elim1Store]: treesize reduction 482, result has 12.8 percent of original size [2022-07-12 12:45:44,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 82 treesize of output 96 [2022-07-12 12:46:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-07-12 12:46:15,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:46:15,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222829229] [2022-07-12 12:46:15,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222829229] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:46:15,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:46:15,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-07-12 12:46:15,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665514085] [2022-07-12 12:46:15,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:46:15,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-12 12:46:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:46:15,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-12 12:46:15,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-07-12 12:46:15,604 INFO L87 Difference]: Start difference. First operand 54305 states and 75993 transitions. Second operand has 24 states, 24 states have (on average 11.208333333333334) internal successors, (269), 20 states have internal predecessors, (269), 13 states have call successors, (115), 8 states have call predecessors, (115), 8 states have return successors, (110), 13 states have call predecessors, (110), 11 states have call successors, (110) [2022-07-12 12:46:17,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:46:19,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:46:21,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:46:23,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:46:25,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:46:27,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:19,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:23,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:29,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:37,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:39,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:40,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:49,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:50,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:47:58,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:48:26,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:48:28,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:48:30,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:48:46,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []