./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:17:36,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:17:36,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:17:36,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:17:36,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:17:36,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:17:36,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:17:36,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:17:36,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:17:36,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:17:36,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:17:36,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:17:36,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:17:36,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:17:36,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:17:36,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:17:36,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:17:36,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:17:36,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:17:36,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:17:36,430 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:17:36,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:17:36,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:17:36,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:17:36,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:17:36,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:17:36,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:17:36,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:17:36,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:17:36,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:17:36,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:17:36,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:17:36,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:17:36,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:17:36,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:17:36,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:17:36,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:17:36,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:17:36,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:17:36,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:17:36,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:17:36,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:17:36,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:17:36,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:17:36,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:17:36,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:17:36,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:17:36,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:17:36,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:17:36,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:17:36,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:17:36,485 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:17:36,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:17:36,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:17:36,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:17:36,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:17:36,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:17:36,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:17:36,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:17:36,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:17:36,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:17:36,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:17:36,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:17:36,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:17:36,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:17:36,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:17:36,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:17:36,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:17:36,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:17:36,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:17:36,489 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:17:36,489 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:17:36,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:17:36,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-07-12 14:17:36,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:17:36,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:17:36,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:17:36,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:17:36,775 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:17:36,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 14:17:36,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfe1033e/5d714681cfd34bb188cbd2057f27ca75/FLAG93160ed3d [2022-07-12 14:17:37,618 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:17:37,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 14:17:37,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfe1033e/5d714681cfd34bb188cbd2057f27ca75/FLAG93160ed3d [2022-07-12 14:17:37,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfe1033e/5d714681cfd34bb188cbd2057f27ca75 [2022-07-12 14:17:37,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:17:37,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:17:37,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:17:37,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:17:37,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:17:37,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:17:37" (1/1) ... [2022-07-12 14:17:37,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c0de23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:37, skipping insertion in model container [2022-07-12 14:17:37,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:17:37" (1/1) ... [2022-07-12 14:17:37,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:17:37,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:17:39,951 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-12 14:17:40,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:17:40,086 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:17:40,394 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: cfgpmcsr = cfgpmcsr & 4294967039U [8330] 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 14:17:40,401 INFO L158 Benchmark]: Toolchain (without parser) took 2545.64ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 77.9MB in the beginning and 58.9MB in the end (delta: 19.0MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2022-07-12 14:17:40,402 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:17:40,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2541.06ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 77.6MB in the beginning and 58.9MB in the end (delta: 18.7MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2022-07-12 14:17:40,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2541.06ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 77.6MB in the beginning and 58.9MB in the end (delta: 18.7MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8330] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8330]: 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:17:42,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:17:42,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:17:42,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:17:42,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:17:42,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:17:42,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:17:42,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:17:42,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:17:42,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:17:42,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:17:42,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:17:42,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:17:42,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:17:42,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:17:42,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:17:42,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:17:42,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:17:42,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:17:42,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:17:42,370 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:17:42,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:17:42,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:17:42,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:17:42,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:17:42,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:17:42,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:17:42,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:17:42,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:17:42,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:17:42,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:17:42,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:17:42,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:17:42,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:17:42,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:17:42,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:17:42,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:17:42,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:17:42,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:17:42,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:17:42,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:17:42,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:17:42,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:17:42,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:17:42,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:17:42,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:17:42,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:17:42,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:17:42,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:17:42,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:17:42,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:17:42,438 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:17:42,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:17:42,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:17:42,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:17:42,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:17:42,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:17:42,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:17:42,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:17:42,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:17:42,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:17:42,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:17:42,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:17:42,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:17:42,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:17:42,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:17:42,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:17:42,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:17:42,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:17:42,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:17:42,443 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:17:42,443 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:17:42,444 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:17:42,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:17:42,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:17:42,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:17:42,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-07-12 14:17:42,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:17:42,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:17:42,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:17:42,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:17:42,816 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:17:42,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 14:17:42,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935c8f394/0a2661fc44ec44b69e9bed436a32a838/FLAGb3393082a [2022-07-12 14:17:43,646 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:17:43,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 14:17:43,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935c8f394/0a2661fc44ec44b69e9bed436a32a838/FLAGb3393082a [2022-07-12 14:17:43,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935c8f394/0a2661fc44ec44b69e9bed436a32a838 [2022-07-12 14:17:43,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:17:43,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:17:43,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:17:43,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:17:43,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:17:43,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:17:43" (1/1) ... [2022-07-12 14:17:43,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284b1234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:43, skipping insertion in model container [2022-07-12 14:17:43,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:17:43" (1/1) ... [2022-07-12 14:17:43,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:17:43,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:17:45,964 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-12 14:17:46,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:17:46,086 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:17:46,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:17:46,465 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-12 14:17:46,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:17:46,499 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:17:46,798 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-12 14:17:46,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:17:46,973 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:17:46,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46 WrapperNode [2022-07-12 14:17:46,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:17:46,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:17:46,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:17:46,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:17:46,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,246 INFO L137 Inliner]: procedures = 283, calls = 1587, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4146 [2022-07-12 14:17:47,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:17:47,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:17:47,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:17:47,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:17:47,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:17:47,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:17:47,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:17:47,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:17:47,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (1/1) ... [2022-07-12 14:17:47,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:17:47,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:17:47,532 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 14:17:47,561 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 14:17:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-12 14:17:47,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-12 14:17:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:17:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:17:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-12 14:17:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-12 14:17:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2022-07-12 14:17:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2022-07-12 14:17:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:17:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:17:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 14:17:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 14:17:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:17:47,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:17:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:17:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:17:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 14:17:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 14:17:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 14:17:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 14:17:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 14:17:47,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 14:17:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:17:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:17:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:17:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:17:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-12 14:17:47,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-12 14:17:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:17:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:17:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 14:17:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 14:17:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 14:17:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 14:17:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 14:17:47,584 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 14:17:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 14:17:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-12 14:17:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 14:17:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:17:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 14:17:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 14:17:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 14:17:47,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 14:17:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-12 14:17:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 14:17:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-12 14:17:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 14:17:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:17:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 14:17:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 14:17:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-12 14:17:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-12 14:17:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:17:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 14:17:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 14:17:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 14:17:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 14:17:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 14:17:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 14:17:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 14:17:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 14:17:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 14:17:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-12 14:17:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-12 14:17:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 14:17:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-12 14:17:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-12 14:17:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-12 14:17:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 14:17:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:17:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 14:17:47,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-12 14:17:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 14:17:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-12 14:17:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 14:17:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-12 14:17:47,590 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-12 14:17:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 14:17:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 14:17:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-12 14:17:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-12 14:17:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-12 14:17:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 14:17:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 14:17:47,591 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 14:17:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 14:17:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 14:17:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:17:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:17:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-07-12 14:17:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-07-12 14:17:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-07-12 14:17:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-07-12 14:17:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-12 14:17:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 14:17:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 14:17:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2022-07-12 14:17:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2022-07-12 14:17:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-12 14:17:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-12 14:17:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 14:17:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 14:17:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-07-12 14:17:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-07-12 14:17:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 14:17:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 14:17:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 14:17:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 14:17:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:17:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:17:48,327 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:17:48,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:17:48,549 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:18:17,229 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:18:17,249 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:18:17,250 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 14:18:17,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:18:17 BoogieIcfgContainer [2022-07-12 14:18:17,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:18:17,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:18:17,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:18:17,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:18:17,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:17:43" (1/3) ... [2022-07-12 14:18:17,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51be52bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:18:17, skipping insertion in model container [2022-07-12 14:18:17,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:17:46" (2/3) ... [2022-07-12 14:18:17,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51be52bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:18:17, skipping insertion in model container [2022-07-12 14:18:17,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:18:17" (3/3) ... [2022-07-12 14:18:17,263 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-12 14:18:17,276 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:18:17,277 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:18:17,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:18:17,385 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@116fba0c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a556afe [2022-07-12 14:18:17,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:18:17,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2022-07-12 14:18:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-12 14:18:17,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:17,441 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 14:18:17,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:17,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash -276937392, now seen corresponding path program 1 times [2022-07-12 14:18:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:17,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552790313] [2022-07-12 14:18:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:17,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:17,467 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 14:18:17,478 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 14:18:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:18,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:18:18,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-12 14:18:19,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:19,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:19,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552790313] [2022-07-12 14:18:19,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552790313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:19,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:19,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:18:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233939514] [2022-07-12 14:18:19,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:19,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:18:19,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:18:19,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:18:19,151 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:19,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:19,472 INFO L93 Difference]: Finished difference Result 3411 states and 4941 transitions. [2022-07-12 14:18:19,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:18:19,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2022-07-12 14:18:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:19,507 INFO L225 Difference]: With dead ends: 3411 [2022-07-12 14:18:19,507 INFO L226 Difference]: Without dead ends: 1687 [2022-07-12 14:18:19,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 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 14:18:19,529 INFO L413 NwaCegarLoop]: 2437 mSDtfsCounter, 3 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:19,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7302 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-07-12 14:18:19,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-07-12 14:18:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1166 states have (on average 1.316466552315609) internal successors, (1535), 1181 states have internal predecessors, (1535), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-07-12 14:18:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2412 transitions. [2022-07-12 14:18:19,768 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2412 transitions. Word has length 178 [2022-07-12 14:18:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:19,772 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2412 transitions. [2022-07-12 14:18:19,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2412 transitions. [2022-07-12 14:18:19,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-12 14:18:19,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:19,787 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 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] [2022-07-12 14:18:19,834 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 14:18:20,007 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 14:18:20,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:20,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1058624020, now seen corresponding path program 1 times [2022-07-12 14:18:20,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:20,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380129485] [2022-07-12 14:18:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:20,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:20,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:20,013 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 14:18:20,015 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 14:18:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:21,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:18:21,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 14:18:21,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:18:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-07-12 14:18:22,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:22,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380129485] [2022-07-12 14:18:22,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380129485] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:18:22,044 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:18:22,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 14:18:22,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760480140] [2022-07-12 14:18:22,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:18:22,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:18:22,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:22,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:18:22,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:18:22,049 INFO L87 Difference]: Start difference. First operand 1687 states and 2412 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 14:18:22,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:22,472 INFO L93 Difference]: Finished difference Result 3367 states and 4819 transitions. [2022-07-12 14:18:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 14:18:22,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 182 [2022-07-12 14:18:22,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:22,484 INFO L225 Difference]: With dead ends: 3367 [2022-07-12 14:18:22,484 INFO L226 Difference]: Without dead ends: 1690 [2022-07-12 14:18:22,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-07-12 14:18:22,494 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 16 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:22,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7223 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-12 14:18:22,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1690. [2022-07-12 14:18:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1169 states have (on average 1.3156544054747648) internal successors, (1538), 1184 states have internal predecessors, (1538), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-07-12 14:18:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2415 transitions. [2022-07-12 14:18:22,597 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2415 transitions. Word has length 182 [2022-07-12 14:18:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:22,599 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2415 transitions. [2022-07-12 14:18:22,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 14:18:22,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2415 transitions. [2022-07-12 14:18:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-12 14:18:22,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:22,606 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 14:18:22,653 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 14:18:22,819 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 14:18:22,820 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1116492112, now seen corresponding path program 2 times [2022-07-12 14:18:22,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:22,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312699282] [2022-07-12 14:18:22,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:18:22,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:22,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:22,825 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 14:18:22,827 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 14:18:23,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:18:23,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:18:23,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:18:23,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:18:24,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:24,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:24,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312699282] [2022-07-12 14:18:24,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312699282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:24,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:24,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:18:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059849278] [2022-07-12 14:18:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:24,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:18:24,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:18:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:18:24,325 INFO L87 Difference]: Start difference. First operand 1690 states and 2415 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:24,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:24,620 INFO L93 Difference]: Finished difference Result 5013 states and 7171 transitions. [2022-07-12 14:18:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:18:24,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 194 [2022-07-12 14:18:24,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:24,645 INFO L225 Difference]: With dead ends: 5013 [2022-07-12 14:18:24,645 INFO L226 Difference]: Without dead ends: 3355 [2022-07-12 14:18:24,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:18:24,658 INFO L413 NwaCegarLoop]: 2847 mSDtfsCounter, 2357 mSDsluCounter, 8051 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 10898 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:24,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 10898 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-07-12 14:18:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3342. [2022-07-12 14:18:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 2312 states have (on average 1.3166089965397925) internal successors, (3044), 2346 states have internal predecessors, (3044), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2022-07-12 14:18:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4777 transitions. [2022-07-12 14:18:24,823 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4777 transitions. Word has length 194 [2022-07-12 14:18:24,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:24,824 INFO L495 AbstractCegarLoop]: Abstraction has 3342 states and 4777 transitions. [2022-07-12 14:18:24,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:24,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4777 transitions. [2022-07-12 14:18:24,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-12 14:18:24,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:24,833 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 14:18:24,874 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 14:18:25,047 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 14:18:25,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:25,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:25,048 INFO L85 PathProgramCache]: Analyzing trace with hash -764921439, now seen corresponding path program 1 times [2022-07-12 14:18:25,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:25,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235585420] [2022-07-12 14:18:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:25,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:25,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:25,053 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 14:18:25,055 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 14:18:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:27,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:18:27,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:18:27,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:27,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:27,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235585420] [2022-07-12 14:18:27,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235585420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:27,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:27,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:18:27,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388532998] [2022-07-12 14:18:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:27,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:18:27,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:18:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:18:27,609 INFO L87 Difference]: Start difference. First operand 3342 states and 4777 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:27,937 INFO L93 Difference]: Finished difference Result 9982 states and 14275 transitions. [2022-07-12 14:18:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:18:27,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 195 [2022-07-12 14:18:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:27,986 INFO L225 Difference]: With dead ends: 9982 [2022-07-12 14:18:27,986 INFO L226 Difference]: Without dead ends: 6672 [2022-07-12 14:18:28,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:18:28,011 INFO L413 NwaCegarLoop]: 2855 mSDtfsCounter, 2356 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 10920 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:28,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 10920 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:28,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2022-07-12 14:18:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 6651. [2022-07-12 14:18:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 4604 states have (on average 1.3166811468288444) internal successors, (6062), 4671 states have internal predecessors, (6062), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2022-07-12 14:18:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9505 transitions. [2022-07-12 14:18:28,302 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9505 transitions. Word has length 195 [2022-07-12 14:18:28,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:28,303 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 9505 transitions. [2022-07-12 14:18:28,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:28,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9505 transitions. [2022-07-12 14:18:28,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-12 14:18:28,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:28,311 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 14:18:28,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:28,531 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 14:18:28,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash -61131277, now seen corresponding path program 1 times [2022-07-12 14:18:28,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:28,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658500184] [2022-07-12 14:18:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:28,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:28,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:28,535 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 14:18:28,536 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 14:18:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:30,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:18:30,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:18:31,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:31,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:31,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658500184] [2022-07-12 14:18:31,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658500184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:31,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:31,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:18:31,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719212894] [2022-07-12 14:18:31,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:31,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:18:31,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:31,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:18:31,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:18:31,062 INFO L87 Difference]: Start difference. First operand 6651 states and 9505 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:31,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:31,542 INFO L93 Difference]: Finished difference Result 19932 states and 28489 transitions. [2022-07-12 14:18:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:18:31,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-07-12 14:18:31,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:31,674 INFO L225 Difference]: With dead ends: 19932 [2022-07-12 14:18:31,674 INFO L226 Difference]: Without dead ends: 13313 [2022-07-12 14:18:31,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:18:31,722 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 2357 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:31,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 10863 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13313 states. [2022-07-12 14:18:32,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13313 to 13274. [2022-07-12 14:18:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13274 states, 9193 states have (on average 1.3164364190144675) internal successors, (12102), 9325 states have internal predecessors, (12102), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2022-07-12 14:18:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13274 states to 13274 states and 18963 transitions. [2022-07-12 14:18:32,340 INFO L78 Accepts]: Start accepts. Automaton has 13274 states and 18963 transitions. Word has length 196 [2022-07-12 14:18:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:32,341 INFO L495 AbstractCegarLoop]: Abstraction has 13274 states and 18963 transitions. [2022-07-12 14:18:32,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13274 states and 18963 transitions. [2022-07-12 14:18:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-12 14:18:32,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:32,350 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:18:32,398 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 14:18:32,563 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 14:18:32,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash -820404636, now seen corresponding path program 1 times [2022-07-12 14:18:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:32,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394570981] [2022-07-12 14:18:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:32,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:32,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:32,567 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 14:18:32,569 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 14:18:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:34,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:18:34,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:18:35,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:35,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:35,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394570981] [2022-07-12 14:18:35,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394570981] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:35,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:35,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:18:35,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578896267] [2022-07-12 14:18:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:35,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:18:35,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:18:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:18:35,090 INFO L87 Difference]: Start difference. First operand 13274 states and 18963 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:35,881 INFO L93 Difference]: Finished difference Result 39832 states and 56901 transitions. [2022-07-12 14:18:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:18:35,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 197 [2022-07-12 14:18:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:36,032 INFO L225 Difference]: With dead ends: 39832 [2022-07-12 14:18:36,032 INFO L226 Difference]: Without dead ends: 26590 [2022-07-12 14:18:36,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:18:36,100 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 2358 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:36,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 10863 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:18:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26590 states. [2022-07-12 14:18:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26590 to 26518. [2022-07-12 14:18:37,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26518 states, 18371 states have (on average 1.315987153666104) internal successors, (24176), 18631 states have internal predecessors, (24176), 6846 states have call successors, (6846), 1301 states have call predecessors, (6846), 1300 states have return successors, (6845), 6761 states have call predecessors, (6845), 6845 states have call successors, (6845) [2022-07-12 14:18:37,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26518 states to 26518 states and 37867 transitions. [2022-07-12 14:18:37,283 INFO L78 Accepts]: Start accepts. Automaton has 26518 states and 37867 transitions. Word has length 197 [2022-07-12 14:18:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:37,284 INFO L495 AbstractCegarLoop]: Abstraction has 26518 states and 37867 transitions. [2022-07-12 14:18:37,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 14:18:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 26518 states and 37867 transitions. [2022-07-12 14:18:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-12 14:18:37,295 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:37,295 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:37,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:37,511 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 14:18:37,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash -656198339, now seen corresponding path program 1 times [2022-07-12 14:18:37,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:37,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695000901] [2022-07-12 14:18:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:37,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:37,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:37,516 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 14:18:37,518 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 14:18:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:39,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:18:39,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-12 14:18:39,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:18:39,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:39,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695000901] [2022-07-12 14:18:39,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695000901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:18:39,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:18:39,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:18:39,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575789453] [2022-07-12 14:18:39,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:39,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:18:39,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:18:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:18:39,814 INFO L87 Difference]: Start difference. First operand 26518 states and 37867 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 14:18:41,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:41,576 INFO L93 Difference]: Finished difference Result 73720 states and 104866 transitions. [2022-07-12 14:18:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:18:41,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 209 [2022-07-12 14:18:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:41,830 INFO L225 Difference]: With dead ends: 73720 [2022-07-12 14:18:41,831 INFO L226 Difference]: Without dead ends: 47234 [2022-07-12 14:18:41,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 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 14:18:41,937 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 1894 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:41,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 4987 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 14:18:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47234 states. [2022-07-12 14:18:43,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47234 to 47151. [2022-07-12 14:18:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47151 states, 32728 states have (on average 1.3129430457100952) internal successors, (42970), 33262 states have internal predecessors, (42970), 11987 states have call successors, (11987), 2452 states have call predecessors, (11987), 2435 states have return successors, (11986), 11754 states have call predecessors, (11986), 11986 states have call successors, (11986) [2022-07-12 14:18:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47151 states to 47151 states and 66943 transitions. [2022-07-12 14:18:43,971 INFO L78 Accepts]: Start accepts. Automaton has 47151 states and 66943 transitions. Word has length 209 [2022-07-12 14:18:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:18:43,974 INFO L495 AbstractCegarLoop]: Abstraction has 47151 states and 66943 transitions. [2022-07-12 14:18:43,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 14:18:43,975 INFO L276 IsEmpty]: Start isEmpty. Operand 47151 states and 66943 transitions. [2022-07-12 14:18:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-12 14:18:43,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:18:43,982 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:18:44,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 14:18:44,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:18:44,203 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:18:44,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:18:44,204 INFO L85 PathProgramCache]: Analyzing trace with hash 747111617, now seen corresponding path program 1 times [2022-07-12 14:18:44,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:18:44,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2666934] [2022-07-12 14:18:44,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:18:44,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:18:44,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:18:44,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:18:44,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 14:18:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:18:46,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:18:46,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:18:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-12 14:18:47,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:18:47,562 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-12 14:18:47,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:18:47,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2666934] [2022-07-12 14:18:47,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2666934] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 14:18:47,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 14:18:47,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-12 14:18:47,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078702915] [2022-07-12 14:18:47,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:18:47,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:18:47,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:18:47,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:18:47,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 14:18:47,565 INFO L87 Difference]: Start difference. First operand 47151 states and 66943 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 14:18:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:18:58,963 INFO L93 Difference]: Finished difference Result 127795 states and 182940 transitions. [2022-07-12 14:18:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 14:18:58,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 207 [2022-07-12 14:18:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:18:59,542 INFO L225 Difference]: With dead ends: 127795 [2022-07-12 14:18:59,542 INFO L226 Difference]: Without dead ends: 80676 [2022-07-12 14:18:59,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-12 14:18:59,780 INFO L413 NwaCegarLoop]: 4210 mSDtfsCounter, 3882 mSDsluCounter, 19639 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 23849 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:18:59,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 23849 Invalid, 3583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-07-12 14:18:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80676 states. [2022-07-12 14:19:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80676 to 70461. [2022-07-12 14:19:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70461 states, 48900 states have (on average 1.3134560327198364) internal successors, (64228), 49688 states have internal predecessors, (64228), 17931 states have call successors, (17931), 3654 states have call predecessors, (17931), 3629 states have return successors, (17930), 17594 states have call predecessors, (17930), 17930 states have call successors, (17930) [2022-07-12 14:19:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70461 states to 70461 states and 100089 transitions. [2022-07-12 14:19:02,984 INFO L78 Accepts]: Start accepts. Automaton has 70461 states and 100089 transitions. Word has length 207 [2022-07-12 14:19:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:19:02,986 INFO L495 AbstractCegarLoop]: Abstraction has 70461 states and 100089 transitions. [2022-07-12 14:19:02,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 14:19:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 70461 states and 100089 transitions. [2022-07-12 14:19:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-12 14:19:02,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:19:02,995 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:19:03,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 14:19:03,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:19:03,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:19:03,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:19:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash -12337195, now seen corresponding path program 1 times [2022-07-12 14:19:03,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:19:03,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18577137] [2022-07-12 14:19:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:19:03,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:19:03,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:19:03,216 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:19:03,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 14:19:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:19:05,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:19:05,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:19:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:19:06,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:19:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:19:06,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:19:06,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18577137] [2022-07-12 14:19:06,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18577137] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:19:06,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:19:06,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-12 14:19:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510202410] [2022-07-12 14:19:06,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:19:06,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:19:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:19:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:19:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:19:06,691 INFO L87 Difference]: Start difference. First operand 70461 states and 100089 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-12 14:19:32,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:19:32,021 INFO L93 Difference]: Finished difference Result 162681 states and 232520 transitions. [2022-07-12 14:19:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-12 14:19:32,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 208 [2022-07-12 14:19:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:19:32,811 INFO L225 Difference]: With dead ends: 162681 [2022-07-12 14:19:32,811 INFO L226 Difference]: Without dead ends: 92252 [2022-07-12 14:19:33,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 14:19:33,074 INFO L413 NwaCegarLoop]: 6252 mSDtfsCounter, 10192 mSDsluCounter, 28073 mSDsCounter, 0 mSdLazyCounter, 8117 mSolverCounterSat, 3087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10403 SdHoareTripleChecker+Valid, 34325 SdHoareTripleChecker+Invalid, 11204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3087 IncrementalHoareTripleChecker+Valid, 8117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-07-12 14:19:33,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10403 Valid, 34325 Invalid, 11204 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3087 Valid, 8117 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2022-07-12 14:19:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92252 states. [2022-07-12 14:19:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92252 to 82067. [2022-07-12 14:19:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82067 states, 56944 states have (on average 1.313395616746277) internal successors, (74790), 57870 states have internal predecessors, (74790), 20891 states have call successors, (20891), 4260 states have call predecessors, (20891), 4231 states have return successors, (20898), 20490 states have call predecessors, (20898), 20890 states have call successors, (20898) [2022-07-12 14:19:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82067 states to 82067 states and 116579 transitions. [2022-07-12 14:19:36,498 INFO L78 Accepts]: Start accepts. Automaton has 82067 states and 116579 transitions. Word has length 208 [2022-07-12 14:19:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:19:36,499 INFO L495 AbstractCegarLoop]: Abstraction has 82067 states and 116579 transitions. [2022-07-12 14:19:36,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-12 14:19:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 82067 states and 116579 transitions. [2022-07-12 14:19:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-12 14:19:36,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:19:36,509 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 14:19:36,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 14:19:36,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:19:36,731 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:19:36,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:19:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash -890851192, now seen corresponding path program 1 times [2022-07-12 14:19:36,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:19:36,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844767549] [2022-07-12 14:19:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:19:36,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:19:36,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:19:36,736 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:19:36,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 14:19:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:19:38,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:19:38,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:19:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:19:39,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:19:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:19:39,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:19:39,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844767549] [2022-07-12 14:19:39,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844767549] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:19:39,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:19:39,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-12 14:19:39,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781975951] [2022-07-12 14:19:39,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:19:39,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:19:39,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:19:39,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:19:39,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:19:39,575 INFO L87 Difference]: Start difference. First operand 82067 states and 116579 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-12 14:20:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:20,419 INFO L93 Difference]: Finished difference Result 185895 states and 265502 transitions. [2022-07-12 14:20:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-12 14:20:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 209 [2022-07-12 14:20:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:20,942 INFO L225 Difference]: With dead ends: 185895 [2022-07-12 14:20:20,942 INFO L226 Difference]: Without dead ends: 103860 [2022-07-12 14:20:21,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 14:20:21,267 INFO L413 NwaCegarLoop]: 6598 mSDtfsCounter, 9876 mSDsluCounter, 41986 mSDsCounter, 0 mSdLazyCounter, 13870 mSolverCounterSat, 3005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10087 SdHoareTripleChecker+Valid, 48584 SdHoareTripleChecker+Invalid, 16875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3005 IncrementalHoareTripleChecker+Valid, 13870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:21,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10087 Valid, 48584 Invalid, 16875 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3005 Valid, 13870 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2022-07-12 14:20:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103860 states. [2022-07-12 14:20:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103860 to 87957. [2022-07-12 14:20:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87957 states, 61032 states have (on average 1.3134257438720671) internal successors, (80161), 62030 states have internal predecessors, (80161), 22389 states have call successors, (22389), 4566 states have call predecessors, (22389), 4535 states have return successors, (22402), 21954 states have call predecessors, (22402), 22388 states have call successors, (22402) [2022-07-12 14:20:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87957 states to 87957 states and 124952 transitions. [2022-07-12 14:20:25,168 INFO L78 Accepts]: Start accepts. Automaton has 87957 states and 124952 transitions. Word has length 209 [2022-07-12 14:20:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:25,169 INFO L495 AbstractCegarLoop]: Abstraction has 87957 states and 124952 transitions. [2022-07-12 14:20:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-12 14:20:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 87957 states and 124952 transitions. [2022-07-12 14:20:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 14:20:25,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:25,181 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-12 14:20:25,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 14:20:25,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:20:25,396 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:25,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1165418628, now seen corresponding path program 1 times [2022-07-12 14:20:25,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:20:25,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359378513] [2022-07-12 14:20:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:25,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:20:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:20:25,399 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:20:25,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 14:20:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:27,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:20:27,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:20:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:20:28,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:20:28,589 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-12 14:20:28,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:20:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359378513] [2022-07-12 14:20:28,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359378513] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:20:28,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:20:28,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-12 14:20:28,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617508389] [2022-07-12 14:20:28,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:20:28,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 14:20:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:20:28,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 14:20:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 14:20:28,591 INFO L87 Difference]: Start difference. First operand 87957 states and 124952 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-12 14:21:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:00,380 INFO L93 Difference]: Finished difference Result 197676 states and 282249 transitions. [2022-07-12 14:21:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-12 14:21:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 210 [2022-07-12 14:21:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:00,967 INFO L225 Difference]: With dead ends: 197676 [2022-07-12 14:21:00,967 INFO L226 Difference]: Without dead ends: 109751 [2022-07-12 14:21:01,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 14:21:01,302 INFO L413 NwaCegarLoop]: 6590 mSDtfsCounter, 9920 mSDsluCounter, 35137 mSDsCounter, 0 mSdLazyCounter, 9729 mSolverCounterSat, 3013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10131 SdHoareTripleChecker+Valid, 41727 SdHoareTripleChecker+Invalid, 12742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3013 IncrementalHoareTripleChecker+Valid, 9729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:01,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10131 Valid, 41727 Invalid, 12742 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3013 Valid, 9729 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2022-07-12 14:21:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109751 states. [2022-07-12 14:21:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109751 to 90903. [2022-07-12 14:21:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90903 states, 63076 states have (on average 1.3134472699600481) internal successors, (82847), 64111 states have internal predecessors, (82847), 23139 states have call successors, (23139), 4719 states have call predecessors, (23139), 4687 states have return successors, (23156), 22686 states have call predecessors, (23156), 23138 states have call successors, (23156) [2022-07-12 14:21:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90903 states to 90903 states and 129142 transitions. [2022-07-12 14:21:05,588 INFO L78 Accepts]: Start accepts. Automaton has 90903 states and 129142 transitions. Word has length 210 [2022-07-12 14:21:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:05,591 INFO L495 AbstractCegarLoop]: Abstraction has 90903 states and 129142 transitions. [2022-07-12 14:21:05,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-12 14:21:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 90903 states and 129142 transitions. [2022-07-12 14:21:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 14:21:05,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:05,601 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:05,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:05,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:21:05,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:05,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1240656292, now seen corresponding path program 1 times [2022-07-12 14:21:05,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:21:05,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301806948] [2022-07-12 14:21:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:05,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:21:05,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:21:05,832 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:21:05,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 14:21:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:07,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-12 14:21:07,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-07-12 14:21:08,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:21:09,556 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-12 14:21:09,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:21:09,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301806948] [2022-07-12 14:21:09,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301806948] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:21:09,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:21:09,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2022-07-12 14:21:09,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997643606] [2022-07-12 14:21:09,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:21:09,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 14:21:09,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:21:09,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 14:21:09,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-12 14:21:09,558 INFO L87 Difference]: Start difference. First operand 90903 states and 129142 transitions. Second operand has 16 states, 16 states have (on average 6.75) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36)