./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--irda--vlsi_ir.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.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 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:01:12,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:01:12,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:01:12,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:01:12,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:01:12,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:01:12,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:01:12,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:01:12,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:01:12,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:01:12,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:01:12,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:01:12,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:01:12,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:01:12,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:01:12,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:01:12,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:01:12,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:01:12,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:01:12,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:01:12,866 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:01:12,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:01:12,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:01:12,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:01:12,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:01:12,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:01:12,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:01:12,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:01:12,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:01:12,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:01:12,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:01:12,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:01:12,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:01:12,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:01:12,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:01:12,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:01:12,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:01:12,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:01:12,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:01:12,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:01:12,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:01:12,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:01:12,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:01:12,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:01:12,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:01:12,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:01:12,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:01:12,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:01:12,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:01:12,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:01:12,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:01:12,909 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:01:12,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:01:12,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:01:12,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:01:12,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:01:12,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:01:12,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:01:12,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:01:12,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:01:12,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:01:12,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:01:12,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:01:12,912 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:01:12,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:01:12,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:01:12,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2022-07-14 02:01:13,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:01:13,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:01:13,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:01:13,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:01:13,117 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:01:13,118 INFO L432 ainManager$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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-14 02:01:13,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2cfd6ab/0b00458aae9a4c5589b912e722e5adc5/FLAG05ea28cd1 [2022-07-14 02:01:13,789 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:01:13,790 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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-14 02:01:13,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2cfd6ab/0b00458aae9a4c5589b912e722e5adc5/FLAG05ea28cd1 [2022-07-14 02:01:13,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2cfd6ab/0b00458aae9a4c5589b912e722e5adc5 [2022-07-14 02:01:13,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:01:13,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:01:13,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:01:13,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:01:13,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:01:13,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:01:13" (1/1) ... [2022-07-14 02:01:13,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7bb735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:13, skipping insertion in model container [2022-07-14 02:01:13,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:01:13" (1/1) ... [2022-07-14 02:01:13,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:01:14,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:01:15,398 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-14 02:01:15,437 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 02:01:15,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:01:15,487 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:01:15,716 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: clkctl = (unsigned int )clkctl & 127U [8431] 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: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) [2022-07-14 02:01:15,731 INFO L158 Benchmark]: Toolchain (without parser) took 1770.13ms. Allocated memory was 90.2MB in the beginning and 184.5MB in the end (delta: 94.4MB). Free memory was 46.4MB in the beginning and 115.8MB in the end (delta: -69.4MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-07-14 02:01:15,732 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 02:01:15,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1767.09ms. Allocated memory was 90.2MB in the beginning and 184.5MB in the end (delta: 94.4MB). Free memory was 46.3MB in the beginning and 115.8MB in the end (delta: -69.6MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-07-14 02:01:15,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1767.09ms. Allocated memory was 90.2MB in the beginning and 184.5MB in the end (delta: 94.4MB). Free memory was 46.3MB in the beginning and 115.8MB in the end (delta: -69.6MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8431] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8431]: 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--irda--vlsi_ir.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 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:01:17,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:01:17,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:01:17,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:01:17,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:01:17,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:01:17,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:01:17,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:01:17,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:01:17,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:01:17,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:01:17,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:01:17,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:01:17,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:01:17,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:01:17,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:01:17,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:01:17,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:01:17,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:01:17,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:01:17,310 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:01:17,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:01:17,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:01:17,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:01:17,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:01:17,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:01:17,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:01:17,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:01:17,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:01:17,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:01:17,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:01:17,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:01:17,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:01:17,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:01:17,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:01:17,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:01:17,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:01:17,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:01:17,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:01:17,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:01:17,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:01:17,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:01:17,335 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 02:01:17,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:01:17,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:01:17,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:01:17,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:01:17,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:01:17,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:01:17,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:01:17,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:01:17,362 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:01:17,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:01:17,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:01:17,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:01:17,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:01:17,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:01:17,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 02:01:17,371 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 02:01:17,371 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 02:01:17,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:01:17,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:01:17,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:01:17,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:01:17,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:01:17,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:01:17,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:01:17,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:01:17,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:01:17,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:01:17,373 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 02:01:17,374 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 02:01:17,374 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:01:17,374 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:01:17,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:01:17,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 02:01:17,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2022-07-14 02:01:17,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:01:17,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:01:17,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:01:17,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:01:17,622 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:01:17,623 INFO L432 ainManager$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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-14 02:01:17,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1229f5f5d/98bcb9b4895a477780a57c3fd47217d4/FLAG5a498a747 [2022-07-14 02:01:18,337 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:01:18,337 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--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-14 02:01:18,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1229f5f5d/98bcb9b4895a477780a57c3fd47217d4/FLAG5a498a747 [2022-07-14 02:01:18,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1229f5f5d/98bcb9b4895a477780a57c3fd47217d4 [2022-07-14 02:01:18,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:01:18,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:01:18,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:01:18,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:01:18,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:01:18,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:01:18" (1/1) ... [2022-07-14 02:01:18,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40902fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:18, skipping insertion in model container [2022-07-14 02:01:18,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:01:18" (1/1) ... [2022-07-14 02:01:18,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:01:18,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:01:20,241 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-14 02:01:20,262 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 02:01:20,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:01:20,353 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 02:01:20,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:01:20,674 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-14 02:01:20,677 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 02:01:20,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:01:20,697 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:01:20,942 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2022-07-14 02:01:20,944 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-14 02:01:20,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:01:21,061 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:01:21,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21 WrapperNode [2022-07-14 02:01:21,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:01:21,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:01:21,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:01:21,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:01:21,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,298 INFO L137 Inliner]: procedures = 289, calls = 1982, calls flagged for inlining = 131, calls inlined = 123, statements flattened = 4387 [2022-07-14 02:01:21,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 02:01:21,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 02:01:21,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 02:01:21,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 02:01:21,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 02:01:21,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 02:01:21,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 02:01:21,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 02:01:21,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (1/1) ... [2022-07-14 02:01:21,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:01:21,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:01:21,492 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) [2022-07-14 02:01:21,508 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 [2022-07-14 02:01:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 02:01:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_2 [2022-07-14 02:01:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_2 [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 02:01:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 02:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 02:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 02:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 02:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 02:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 02:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 02:01:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 02:01:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 02:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 02:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2022-07-14 02:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2022-07-14 02:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 02:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 02:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-14 02:01:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-14 02:01:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2022-07-14 02:01:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2022-07-14 02:01:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 02:01:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 02:01:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2022-07-14 02:01:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2022-07-14 02:01:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-07-14 02:01:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-07-14 02:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 02:01:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 02:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 02:01:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 02:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2022-07-14 02:01:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2022-07-14 02:01:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 02:01:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 02:01:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 02:01:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 02:01:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 02:01:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 02:01:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 02:01:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 02:01:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 02:01:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 02:01:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 02:01:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 02:01:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-14 02:01:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-14 02:01:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2022-07-14 02:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2022-07-14 02:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 02:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 02:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 02:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2022-07-14 02:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2022-07-14 02:01:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 02:01:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 02:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 02:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 02:01:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 02:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 02:01:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-14 02:01:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-14 02:01:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_us_delta [2022-07-14 02:01:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_us_delta [2022-07-14 02:01:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 02:01:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 02:01:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2022-07-14 02:01:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2022-07-14 02:01:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2022-07-14 02:01:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2022-07-14 02:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 02:01:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 02:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 02:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 02:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 02:01:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 02:01:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 02:01:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2022-07-14 02:01:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2022-07-14 02:01:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-14 02:01:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-14 02:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 02:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 02:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-14 02:01:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-14 02:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 02:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-14 02:01:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-14 02:01:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 02:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 02:01:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 02:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-14 02:01:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-14 02:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2022-07-14 02:01:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2022-07-14 02:01:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-14 02:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-14 02:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 02:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 02:01:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 02:01:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 02:01:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 02:01:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 02:01:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 02:01:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 02:01:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2022-07-14 02:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2022-07-14 02:01:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2022-07-14 02:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2022-07-14 02:01:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 02:01:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 02:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2022-07-14 02:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2022-07-14 02:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2022-07-14 02:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2022-07-14 02:01:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 02:01:21,551 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 02:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 02:01:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 02:01:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2022-07-14 02:01:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2022-07-14 02:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 02:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 02:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-14 02:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-14 02:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2022-07-14 02:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2022-07-14 02:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 02:01:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 02:01:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 02:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 02:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 02:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 02:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 02:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 02:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2022-07-14 02:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2022-07-14 02:01:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 02:01:21,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 02:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 02:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 02:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 02:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 02:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2022-07-14 02:01:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2022-07-14 02:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 02:01:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-14 02:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-14 02:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 02:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 02:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 02:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 02:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 02:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2022-07-14 02:01:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2022-07-14 02:01:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2022-07-14 02:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2022-07-14 02:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 02:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 02:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 02:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2022-07-14 02:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2022-07-14 02:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 02:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 02:01:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 02:01:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 02:01:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 02:01:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 02:01:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2022-07-14 02:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2022-07-14 02:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 02:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 02:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 02:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 02:01:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ioctl [2022-07-14 02:01:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ioctl [2022-07-14 02:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2022-07-14 02:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2022-07-14 02:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2022-07-14 02:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2022-07-14 02:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2022-07-14 02:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2022-07-14 02:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 02:01:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 02:01:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2022-07-14 02:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2022-07-14 02:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 02:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 02:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2022-07-14 02:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2022-07-14 02:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 02:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2022-07-14 02:01:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2022-07-14 02:01:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-14 02:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-14 02:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2022-07-14 02:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2022-07-14 02:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-14 02:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-14 02:01:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 02:01:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 02:01:22,237 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 02:01:22,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 02:01:24,153 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 02:01:47,243 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 02:01:47,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 02:01:47,256 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 02:01:47,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:01:47 BoogieIcfgContainer [2022-07-14 02:01:47,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 02:01:47,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 02:01:47,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 02:01:47,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 02:01:47,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:01:18" (1/3) ... [2022-07-14 02:01:47,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5942dbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:01:47, skipping insertion in model container [2022-07-14 02:01:47,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:01:21" (2/3) ... [2022-07-14 02:01:47,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5942dbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:01:47, skipping insertion in model container [2022-07-14 02:01:47,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:01:47" (3/3) ... [2022-07-14 02:01:47,267 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2022-07-14 02:01:47,277 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 02:01:47,277 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 02:01:47,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 02:01:47,345 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@1b5d37bd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@15a49c3d [2022-07-14 02:01:47,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 02:01:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 1625 states, 1124 states have (on average 1.3220640569395017) internal successors, (1486), 1150 states have internal predecessors, (1486), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) [2022-07-14 02:01:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-14 02:01:47,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:47,373 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:47,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash -754527677, now seen corresponding path program 1 times [2022-07-14 02:01:47,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:47,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460671706] [2022-07-14 02:01:47,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:47,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:47,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:47,400 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) [2022-07-14 02:01:47,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 02:01:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:48,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-14 02:01:48,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 02:01:48,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:48,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:48,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460671706] [2022-07-14 02:01:48,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460671706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:48,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:48,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 02:01:48,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115614250] [2022-07-14 02:01:48,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:48,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 02:01:48,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:48,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 02:01:48,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 02:01:48,765 INFO L87 Difference]: Start difference. First operand has 1625 states, 1124 states have (on average 1.3220640569395017) internal successors, (1486), 1150 states have internal predecessors, (1486), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 02:01:48,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:48,884 INFO L93 Difference]: Finished difference Result 3245 states and 4630 transitions. [2022-07-14 02:01:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 02:01:48,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 175 [2022-07-14 02:01:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:48,908 INFO L225 Difference]: With dead ends: 3245 [2022-07-14 02:01:48,908 INFO L226 Difference]: Without dead ends: 1601 [2022-07-14 02:01:48,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 02:01:48,922 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:48,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:01:48,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-07-14 02:01:49,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2022-07-14 02:01:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1110 states have (on average 1.3117117117117116) internal successors, (1456), 1126 states have internal predecessors, (1456), 401 states have call successors, (401), 90 states have call predecessors, (401), 89 states have return successors, (400), 399 states have call predecessors, (400), 400 states have call successors, (400) [2022-07-14 02:01:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2257 transitions. [2022-07-14 02:01:49,064 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2257 transitions. Word has length 175 [2022-07-14 02:01:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:49,066 INFO L495 AbstractCegarLoop]: Abstraction has 1601 states and 2257 transitions. [2022-07-14 02:01:49,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 02:01:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2257 transitions. [2022-07-14 02:01:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-14 02:01:49,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:49,083 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:49,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 02:01:49,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:49,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:49,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:49,301 INFO L85 PathProgramCache]: Analyzing trace with hash -890110471, now seen corresponding path program 1 times [2022-07-14 02:01:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:49,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118735105] [2022-07-14 02:01:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:49,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:49,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:49,324 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) [2022-07-14 02:01:49,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 02:01:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:50,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 02:01:50,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-14 02:01:50,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:50,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:50,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118735105] [2022-07-14 02:01:50,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118735105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:50,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:50,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 02:01:50,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040707637] [2022-07-14 02:01:50,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:50,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:01:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:50,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:01:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:01:50,862 INFO L87 Difference]: Start difference. First operand 1601 states and 2257 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:01:51,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:51,407 INFO L93 Difference]: Finished difference Result 3194 states and 4509 transitions. [2022-07-14 02:01:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:01:51,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2022-07-14 02:01:51,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:51,421 INFO L225 Difference]: With dead ends: 3194 [2022-07-14 02:01:51,422 INFO L226 Difference]: Without dead ends: 1602 [2022-07-14 02:01:51,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:01:51,430 INFO L413 NwaCegarLoop]: 2249 mSDtfsCounter, 6 mSDsluCounter, 8975 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11224 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:51,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11224 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:01:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-07-14 02:01:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1602. [2022-07-14 02:01:51,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1111 states have (on average 1.3114311431143115) internal successors, (1457), 1127 states have internal predecessors, (1457), 401 states have call successors, (401), 90 states have call predecessors, (401), 89 states have return successors, (400), 399 states have call predecessors, (400), 400 states have call successors, (400) [2022-07-14 02:01:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 2258 transitions. [2022-07-14 02:01:51,478 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 2258 transitions. Word has length 175 [2022-07-14 02:01:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:51,479 INFO L495 AbstractCegarLoop]: Abstraction has 1602 states and 2258 transitions. [2022-07-14 02:01:51,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 02:01:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 2258 transitions. [2022-07-14 02:01:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-14 02:01:51,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:51,483 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:51,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:51,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:51,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:51,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:51,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1406706502, now seen corresponding path program 1 times [2022-07-14 02:01:51,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:51,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201314304] [2022-07-14 02:01:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:51,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:51,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:51,702 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) [2022-07-14 02:01:51,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 02:01:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:53,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 02:01:53,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-07-14 02:01:53,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:01:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-14 02:01:54,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201314304] [2022-07-14 02:01:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201314304] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:01:54,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:01:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-14 02:01:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580623079] [2022-07-14 02:01:54,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:01:54,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 02:01:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:54,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 02:01:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:01:54,214 INFO L87 Difference]: Start difference. First operand 1602 states and 2258 transitions. Second operand has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-14 02:01:54,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:54,936 INFO L93 Difference]: Finished difference Result 3201 states and 4517 transitions. [2022-07-14 02:01:54,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 02:01:54,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 180 [2022-07-14 02:01:54,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:54,945 INFO L225 Difference]: With dead ends: 3201 [2022-07-14 02:01:54,945 INFO L226 Difference]: Without dead ends: 1608 [2022-07-14 02:01:54,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-14 02:01:54,954 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 10 mSDsluCounter, 8976 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11226 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:54,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11226 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 02:01:54,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2022-07-14 02:01:54,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2022-07-14 02:01:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1115 states have (on average 1.3103139013452916) internal successors, (1461), 1131 states have internal predecessors, (1461), 402 states have call successors, (402), 91 states have call predecessors, (402), 90 states have return successors, (401), 400 states have call predecessors, (401), 401 states have call successors, (401) [2022-07-14 02:01:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2264 transitions. [2022-07-14 02:01:54,996 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2264 transitions. Word has length 180 [2022-07-14 02:01:54,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:54,996 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2264 transitions. [2022-07-14 02:01:54,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-14 02:01:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2264 transitions. [2022-07-14 02:01:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-14 02:01:54,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:54,999 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:55,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:55,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:55,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1346488039, now seen corresponding path program 2 times [2022-07-14 02:01:55,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:55,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148545144] [2022-07-14 02:01:55,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:01:55,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:55,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:55,224 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) [2022-07-14 02:01:55,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 02:01:56,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:01:56,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:01:56,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:01:56,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-14 02:01:56,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:01:56,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:56,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148545144] [2022-07-14 02:01:56,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148545144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:01:56,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:01:56,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:01:56,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557369291] [2022-07-14 02:01:56,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:01:56,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:01:56,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:56,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:01:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:01:56,393 INFO L87 Difference]: Start difference. First operand 1608 states and 2264 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:01:56,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:01:56,827 INFO L93 Difference]: Finished difference Result 4244 states and 5966 transitions. [2022-07-14 02:01:56,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:01:56,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 185 [2022-07-14 02:01:56,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:01:56,841 INFO L225 Difference]: With dead ends: 4244 [2022-07-14 02:01:56,841 INFO L226 Difference]: Without dead ends: 2669 [2022-07-14 02:01:56,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:01:56,849 INFO L413 NwaCegarLoop]: 2523 mSDtfsCounter, 1533 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:01:56,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 4676 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 02:01:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-07-14 02:01:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2663. [2022-07-14 02:01:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 1852 states have (on average 1.3142548596112311) internal successors, (2434), 1877 states have internal predecessors, (2434), 651 states have call successors, (651), 160 states have call predecessors, (651), 159 states have return successors, (654), 647 states have call predecessors, (654), 650 states have call successors, (654) [2022-07-14 02:01:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3739 transitions. [2022-07-14 02:01:56,928 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3739 transitions. Word has length 185 [2022-07-14 02:01:56,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:01:56,930 INFO L495 AbstractCegarLoop]: Abstraction has 2663 states and 3739 transitions. [2022-07-14 02:01:56,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:01:56,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3739 transitions. [2022-07-14 02:01:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-14 02:01:56,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:01:56,936 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:01:56,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 02:01:57,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:01:57,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:01:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:01:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 839830869, now seen corresponding path program 1 times [2022-07-14 02:01:57,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:01:57,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325600406] [2022-07-14 02:01:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:01:57,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:01:57,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:01:57,156 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) [2022-07-14 02:01:57,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 02:01:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:01:58,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 02:01:58,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:01:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-07-14 02:01:58,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:01:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-14 02:01:59,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:01:59,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325600406] [2022-07-14 02:01:59,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325600406] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:01:59,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:01:59,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-14 02:01:59,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631327313] [2022-07-14 02:01:59,991 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:01:59,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 02:01:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:01:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 02:01:59,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:01:59,992 INFO L87 Difference]: Start difference. First operand 2663 states and 3739 transitions. Second operand has 13 states, 11 states have (on average 12.363636363636363) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:01,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:01,105 INFO L93 Difference]: Finished difference Result 5324 states and 7479 transitions. [2022-07-14 02:02:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 02:02:01,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.363636363636363) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 245 [2022-07-14 02:02:01,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:01,122 INFO L225 Difference]: With dead ends: 5324 [2022-07-14 02:02:01,122 INFO L226 Difference]: Without dead ends: 2665 [2022-07-14 02:02:01,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-07-14 02:02:01,134 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 13 mSDsluCounter, 17962 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20212 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:01,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20212 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 02:02:01,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-07-14 02:02:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-07-14 02:02:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 1854 states have (on average 1.313915857605178) internal successors, (2436), 1879 states have internal predecessors, (2436), 651 states have call successors, (651), 160 states have call predecessors, (651), 159 states have return successors, (654), 647 states have call predecessors, (654), 650 states have call successors, (654) [2022-07-14 02:02:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3741 transitions. [2022-07-14 02:02:01,209 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3741 transitions. Word has length 245 [2022-07-14 02:02:01,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:01,210 INFO L495 AbstractCegarLoop]: Abstraction has 2665 states and 3741 transitions. [2022-07-14 02:02:01,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.363636363636363) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:01,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3741 transitions. [2022-07-14 02:02:01,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-14 02:02:01,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:01,214 INFO L195 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:01,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:01,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:01,432 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1281569054, now seen corresponding path program 2 times [2022-07-14 02:02:01,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:01,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616806559] [2022-07-14 02:02:01,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:02:01,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:01,438 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) [2022-07-14 02:02:01,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 02:02:02,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:02:02,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:02:02,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:02:02,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-07-14 02:02:03,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:02:03,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:03,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616806559] [2022-07-14 02:02:03,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616806559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:02:03,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:02:03,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:02:03,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94942786] [2022-07-14 02:02:03,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:02:03,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:02:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:03,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:02:03,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:02:03,700 INFO L87 Difference]: Start difference. First operand 2665 states and 3741 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:04,071 INFO L93 Difference]: Finished difference Result 7933 states and 11154 transitions. [2022-07-14 02:02:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:02:04,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2022-07-14 02:02:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:04,094 INFO L225 Difference]: With dead ends: 7933 [2022-07-14 02:02:04,094 INFO L226 Difference]: Without dead ends: 5308 [2022-07-14 02:02:04,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:02:04,106 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 2201 mSDsluCounter, 7565 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 10246 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:04,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 10246 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:02:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2022-07-14 02:02:04,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5285. [2022-07-14 02:02:04,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 3678 states have (on average 1.3148450244698207) internal successors, (4836), 3736 states have internal predecessors, (4836), 1289 states have call successors, (1289), 318 states have call predecessors, (1289), 317 states have return successors, (1298), 1274 states have call predecessors, (1298), 1288 states have call successors, (1298) [2022-07-14 02:02:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 7423 transitions. [2022-07-14 02:02:04,303 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 7423 transitions. Word has length 250 [2022-07-14 02:02:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:04,304 INFO L495 AbstractCegarLoop]: Abstraction has 5285 states and 7423 transitions. [2022-07-14 02:02:04,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 7423 transitions. [2022-07-14 02:02:04,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-14 02:02:04,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:04,313 INFO L195 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:04,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:04,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:04,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:04,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:04,529 INFO L85 PathProgramCache]: Analyzing trace with hash 964644521, now seen corresponding path program 1 times [2022-07-14 02:02:04,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:04,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532297295] [2022-07-14 02:02:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:02:04,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:04,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:04,531 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) [2022-07-14 02:02:04,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 02:02:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:02:05,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 02:02:05,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-07-14 02:02:06,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:02:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-07-14 02:02:07,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:07,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532297295] [2022-07-14 02:02:07,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532297295] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:02:07,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:02:07,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-14 02:02:07,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921256679] [2022-07-14 02:02:07,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:02:07,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 02:02:07,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:07,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 02:02:07,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-14 02:02:07,753 INFO L87 Difference]: Start difference. First operand 5285 states and 7423 transitions. Second operand has 15 states, 13 states have (on average 10.846153846153847) internal successors, (141), 15 states have internal predecessors, (141), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:08,864 INFO L93 Difference]: Finished difference Result 10571 states and 14854 transitions. [2022-07-14 02:02:08,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 02:02:08,865 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.846153846153847) internal successors, (141), 15 states have internal predecessors, (141), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 253 [2022-07-14 02:02:08,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:08,891 INFO L225 Difference]: With dead ends: 10571 [2022-07-14 02:02:08,892 INFO L226 Difference]: Without dead ends: 5288 [2022-07-14 02:02:08,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-07-14 02:02:08,909 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 12 mSDsluCounter, 15710 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17960 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:08,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17960 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 02:02:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5288 states. [2022-07-14 02:02:09,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5288 to 5288. [2022-07-14 02:02:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3681 states have (on average 1.3145884270578647) internal successors, (4839), 3739 states have internal predecessors, (4839), 1289 states have call successors, (1289), 318 states have call predecessors, (1289), 317 states have return successors, (1298), 1274 states have call predecessors, (1298), 1288 states have call successors, (1298) [2022-07-14 02:02:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7426 transitions. [2022-07-14 02:02:09,052 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7426 transitions. Word has length 253 [2022-07-14 02:02:09,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:09,053 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 7426 transitions. [2022-07-14 02:02:09,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.846153846153847) internal successors, (141), 15 states have internal predecessors, (141), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7426 transitions. [2022-07-14 02:02:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-14 02:02:09,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:09,061 INFO L195 NwaCegarLoop]: trace histogram [20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:09,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:09,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:09,276 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1279434698, now seen corresponding path program 2 times [2022-07-14 02:02:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:09,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226118040] [2022-07-14 02:02:09,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:02:09,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:09,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:09,279 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) [2022-07-14 02:02:09,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 02:02:10,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:02:10,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:02:10,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:02:10,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-07-14 02:02:11,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:02:11,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:11,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226118040] [2022-07-14 02:02:11,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226118040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:02:11,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:02:11,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:02:11,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652614955] [2022-07-14 02:02:11,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:02:11,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:02:11,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:11,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:02:11,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:02:11,564 INFO L87 Difference]: Start difference. First operand 5288 states and 7426 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:11,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:11,965 INFO L93 Difference]: Finished difference Result 15826 states and 22248 transitions. [2022-07-14 02:02:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:02:11,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 258 [2022-07-14 02:02:11,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:12,015 INFO L225 Difference]: With dead ends: 15826 [2022-07-14 02:02:12,015 INFO L226 Difference]: Without dead ends: 10579 [2022-07-14 02:02:12,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:02:12,036 INFO L413 NwaCegarLoop]: 2794 mSDtfsCounter, 2202 mSDsluCounter, 7789 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 10583 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 [2022-07-14 02:02:12,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 10583 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:02:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-07-14 02:02:12,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 10540. [2022-07-14 02:02:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10540 states, 7343 states have (on average 1.3148576875936266) internal successors, (9655), 7457 states have internal predecessors, (9655), 2563 states have call successors, (2563), 634 states have call predecessors, (2563), 633 states have return successors, (2586), 2536 states have call predecessors, (2586), 2562 states have call successors, (2586) [2022-07-14 02:02:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10540 states to 10540 states and 14804 transitions. [2022-07-14 02:02:12,345 INFO L78 Accepts]: Start accepts. Automaton has 10540 states and 14804 transitions. Word has length 258 [2022-07-14 02:02:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:12,345 INFO L495 AbstractCegarLoop]: Abstraction has 10540 states and 14804 transitions. [2022-07-14 02:02:12,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:12,346 INFO L276 IsEmpty]: Start isEmpty. Operand 10540 states and 14804 transitions. [2022-07-14 02:02:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 02:02:12,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:12,351 INFO L195 NwaCegarLoop]: trace histogram [20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:12,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:12,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:12,565 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:12,566 INFO L85 PathProgramCache]: Analyzing trace with hash -643065480, now seen corresponding path program 1 times [2022-07-14 02:02:12,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:12,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313558105] [2022-07-14 02:02:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:02:12,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:12,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:12,569 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) [2022-07-14 02:02:12,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 02:02:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:02:13,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 02:02:13,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 132 proven. 10 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-14 02:02:14,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:02:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-14 02:02:16,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313558105] [2022-07-14 02:02:16,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313558105] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:02:16,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:02:16,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-14 02:02:16,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72103814] [2022-07-14 02:02:16,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:02:16,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 02:02:16,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:16,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 02:02:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-14 02:02:16,186 INFO L87 Difference]: Start difference. First operand 10540 states and 14804 transitions. Second operand has 17 states, 15 states have (on average 9.466666666666667) internal successors, (142), 17 states have internal predecessors, (142), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:17,817 INFO L93 Difference]: Finished difference Result 21090 states and 29635 transitions. [2022-07-14 02:02:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 02:02:17,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 9.466666666666667) internal successors, (142), 17 states have internal predecessors, (142), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 257 [2022-07-14 02:02:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:17,852 INFO L225 Difference]: With dead ends: 21090 [2022-07-14 02:02:17,853 INFO L226 Difference]: Without dead ends: 10553 [2022-07-14 02:02:17,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-14 02:02:17,887 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 13 mSDsluCounter, 17961 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20212 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:17,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20212 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 02:02:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2022-07-14 02:02:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 10553. [2022-07-14 02:02:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10553 states, 7355 states have (on average 1.3144799456152276) internal successors, (9668), 7469 states have internal predecessors, (9668), 2563 states have call successors, (2563), 635 states have call predecessors, (2563), 634 states have return successors, (2586), 2536 states have call predecessors, (2586), 2562 states have call successors, (2586) [2022-07-14 02:02:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10553 states to 10553 states and 14817 transitions. [2022-07-14 02:02:18,133 INFO L78 Accepts]: Start accepts. Automaton has 10553 states and 14817 transitions. Word has length 257 [2022-07-14 02:02:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:18,134 INFO L495 AbstractCegarLoop]: Abstraction has 10553 states and 14817 transitions. [2022-07-14 02:02:18,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 9.466666666666667) internal successors, (142), 17 states have internal predecessors, (142), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 10553 states and 14817 transitions. [2022-07-14 02:02:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-14 02:02:18,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:18,140 INFO L195 NwaCegarLoop]: trace histogram [22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:18,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:18,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:18,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:18,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:18,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1523738059, now seen corresponding path program 1 times [2022-07-14 02:02:18,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:18,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502572766] [2022-07-14 02:02:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:02:18,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:18,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:18,366 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) [2022-07-14 02:02:18,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 02:02:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:02:19,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 02:02:19,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 158 proven. 15 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-07-14 02:02:20,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:02:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-14 02:02:22,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:22,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502572766] [2022-07-14 02:02:22,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502572766] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:02:22,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:02:22,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-14 02:02:22,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127737001] [2022-07-14 02:02:22,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:02:22,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 02:02:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:22,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 02:02:22,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-14 02:02:22,665 INFO L87 Difference]: Start difference. First operand 10553 states and 14817 transitions. Second operand has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 19 states have internal predecessors, (143), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:24,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:24,835 INFO L93 Difference]: Finished difference Result 21110 states and 29650 transitions. [2022-07-14 02:02:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 02:02:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 19 states have internal predecessors, (143), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 258 [2022-07-14 02:02:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:24,875 INFO L225 Difference]: With dead ends: 21110 [2022-07-14 02:02:24,875 INFO L226 Difference]: Without dead ends: 10558 [2022-07-14 02:02:24,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-14 02:02:24,912 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 20 mSDsluCounter, 24705 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 26957 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:24,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 26957 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-14 02:02:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10558 states. [2022-07-14 02:02:25,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10558 to 10558. [2022-07-14 02:02:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10558 states, 7360 states have (on average 1.314266304347826) internal successors, (9673), 7474 states have internal predecessors, (9673), 2563 states have call successors, (2563), 635 states have call predecessors, (2563), 634 states have return successors, (2586), 2536 states have call predecessors, (2586), 2562 states have call successors, (2586) [2022-07-14 02:02:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10558 states to 10558 states and 14822 transitions. [2022-07-14 02:02:25,193 INFO L78 Accepts]: Start accepts. Automaton has 10558 states and 14822 transitions. Word has length 258 [2022-07-14 02:02:25,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:25,193 INFO L495 AbstractCegarLoop]: Abstraction has 10558 states and 14822 transitions. [2022-07-14 02:02:25,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 19 states have internal predecessors, (143), 4 states have call successors, (52), 2 states have call predecessors, (52), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2022-07-14 02:02:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10558 states and 14822 transitions. [2022-07-14 02:02:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-14 02:02:25,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:25,199 INFO L195 NwaCegarLoop]: trace histogram [24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:25,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:25,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:25,415 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:25,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:25,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1981287955, now seen corresponding path program 2 times [2022-07-14 02:02:25,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:25,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236136288] [2022-07-14 02:02:25,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:02:25,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:25,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:25,460 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) [2022-07-14 02:02:25,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 02:02:26,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:02:26,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:02:26,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:02:26,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2022-07-14 02:02:27,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:02:27,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:27,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236136288] [2022-07-14 02:02:27,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236136288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:02:27,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:02:27,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:02:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175490333] [2022-07-14 02:02:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:02:27,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:02:27,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:27,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:02:27,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:02:27,699 INFO L87 Difference]: Start difference. First operand 10558 states and 14822 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:28,198 INFO L93 Difference]: Finished difference Result 31656 states and 44473 transitions. [2022-07-14 02:02:28,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:02:28,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 260 [2022-07-14 02:02:28,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:28,269 INFO L225 Difference]: With dead ends: 31656 [2022-07-14 02:02:28,269 INFO L226 Difference]: Without dead ends: 21149 [2022-07-14 02:02:28,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:02:28,430 INFO L413 NwaCegarLoop]: 2816 mSDtfsCounter, 2200 mSDsluCounter, 7833 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 10649 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 [2022-07-14 02:02:28,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 10649 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:02:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21149 states. [2022-07-14 02:02:28,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21149 to 21074. [2022-07-14 02:02:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21074 states, 14696 states have (on average 1.3140310288513881) internal successors, (19311), 14920 states have internal predecessors, (19311), 5109 states have call successors, (5109), 1269 states have call predecessors, (5109), 1268 states have return successors, (5164), 5060 states have call predecessors, (5164), 5108 states have call successors, (5164) [2022-07-14 02:02:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21074 states to 21074 states and 29584 transitions. [2022-07-14 02:02:28,905 INFO L78 Accepts]: Start accepts. Automaton has 21074 states and 29584 transitions. Word has length 260 [2022-07-14 02:02:28,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:28,905 INFO L495 AbstractCegarLoop]: Abstraction has 21074 states and 29584 transitions. [2022-07-14 02:02:28,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 21074 states and 29584 transitions. [2022-07-14 02:02:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-07-14 02:02:28,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:28,910 INFO L195 NwaCegarLoop]: trace histogram [24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:28,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:29,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:29,124 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:29,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:29,124 INFO L85 PathProgramCache]: Analyzing trace with hash 708415928, now seen corresponding path program 2 times [2022-07-14 02:02:29,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:29,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243211108] [2022-07-14 02:02:29,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:02:29,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:29,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:29,127 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) [2022-07-14 02:02:29,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 02:02:30,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:02:30,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:02:30,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 02:02:30,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2022-07-14 02:02:31,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:02:31,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:31,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243211108] [2022-07-14 02:02:31,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243211108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:02:31,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:02:31,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:02:31,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909202293] [2022-07-14 02:02:31,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:02:31,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:02:31,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:31,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:02:31,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:02:31,493 INFO L87 Difference]: Start difference. First operand 21074 states and 29584 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:32,381 INFO L93 Difference]: Finished difference Result 63045 states and 88499 transitions. [2022-07-14 02:02:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:02:32,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 261 [2022-07-14 02:02:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:32,549 INFO L225 Difference]: With dead ends: 63045 [2022-07-14 02:02:32,549 INFO L226 Difference]: Without dead ends: 42022 [2022-07-14 02:02:32,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:02:32,611 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 2201 mSDsluCounter, 7493 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 10139 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 [2022-07-14 02:02:32,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 10139 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:02:32,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42022 states. [2022-07-14 02:02:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42022 to 41881. [2022-07-14 02:02:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41881 states, 29222 states have (on average 1.3130175894873726) internal successors, (38369), 29654 states have internal predecessors, (38369), 10124 states have call successors, (10124), 2535 states have call predecessors, (10124), 2534 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-14 02:02:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41881 states to 41881 states and 58744 transitions. [2022-07-14 02:02:33,785 INFO L78 Accepts]: Start accepts. Automaton has 41881 states and 58744 transitions. Word has length 261 [2022-07-14 02:02:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:33,785 INFO L495 AbstractCegarLoop]: Abstraction has 41881 states and 58744 transitions. [2022-07-14 02:02:33,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:02:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 41881 states and 58744 transitions. [2022-07-14 02:02:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-14 02:02:33,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:33,791 INFO L195 NwaCegarLoop]: trace histogram [24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:33,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:34,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:34,013 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:34,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1604518581, now seen corresponding path program 1 times [2022-07-14 02:02:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:34,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321980391] [2022-07-14 02:02:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:02:34,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:34,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:34,192 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:02:34,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 02:02:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:02:35,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 02:02:35,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 186 proven. 21 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-07-14 02:02:36,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:02:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 2 proven. 199 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2022-07-14 02:02:38,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:38,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321980391] [2022-07-14 02:02:38,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321980391] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:02:38,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:02:38,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-14 02:02:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093649686] [2022-07-14 02:02:38,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:02:38,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-14 02:02:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-14 02:02:38,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-14 02:02:38,769 INFO L87 Difference]: Start difference. First operand 41881 states and 58744 transitions. Second operand has 21 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 4 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2022-07-14 02:02:41,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:41,698 INFO L93 Difference]: Finished difference Result 83802 states and 117588 transitions. [2022-07-14 02:02:41,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-14 02:02:41,699 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 4 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 272 [2022-07-14 02:02:41,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:41,864 INFO L225 Difference]: With dead ends: 83802 [2022-07-14 02:02:41,865 INFO L226 Difference]: Without dead ends: 41898 [2022-07-14 02:02:42,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-07-14 02:02:42,079 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 24 mSDsluCounter, 22462 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 24714 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:42,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 24714 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 02:02:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41898 states. [2022-07-14 02:02:42,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41898 to 41898. [2022-07-14 02:02:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41898 states, 29239 states have (on average 1.3128355962926228) internal successors, (38386), 29671 states have internal predecessors, (38386), 10124 states have call successors, (10124), 2535 states have call predecessors, (10124), 2534 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-14 02:02:43,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41898 states to 41898 states and 58761 transitions. [2022-07-14 02:02:43,188 INFO L78 Accepts]: Start accepts. Automaton has 41898 states and 58761 transitions. Word has length 272 [2022-07-14 02:02:43,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:43,188 INFO L495 AbstractCegarLoop]: Abstraction has 41898 states and 58761 transitions. [2022-07-14 02:02:43,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 4 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2022-07-14 02:02:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 41898 states and 58761 transitions. [2022-07-14 02:02:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-14 02:02:43,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:43,199 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:43,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-14 02:02:43,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:43,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash -230043603, now seen corresponding path program 2 times [2022-07-14 02:02:43,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:43,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180053687] [2022-07-14 02:02:43,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:02:43,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:43,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:43,427 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:02:43,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 02:02:44,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:02:44,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:02:44,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 02:02:44,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-14 02:02:44,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:02:44,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:44,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180053687] [2022-07-14 02:02:44,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180053687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:02:44,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:02:44,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 02:02:44,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227675368] [2022-07-14 02:02:44,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:02:44,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:02:44,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:44,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:02:44,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:02:44,563 INFO L87 Difference]: Start difference. First operand 41898 states and 58761 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-14 02:02:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:45,129 INFO L93 Difference]: Finished difference Result 42541 states and 59785 transitions. [2022-07-14 02:02:45,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:02:45,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 274 [2022-07-14 02:02:45,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:45,316 INFO L225 Difference]: With dead ends: 42541 [2022-07-14 02:02:45,316 INFO L226 Difference]: Without dead ends: 42538 [2022-07-14 02:02:45,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:02:45,349 INFO L413 NwaCegarLoop]: 2281 mSDtfsCounter, 25 mSDsluCounter, 6810 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 9091 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:45,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 9091 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:02:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42538 states. [2022-07-14 02:02:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42538 to 41962. [2022-07-14 02:02:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41962 states, 29287 states have (on average 1.3117765561511934) internal successors, (38418), 29719 states have internal predecessors, (38418), 10124 states have call successors, (10124), 2551 states have call predecessors, (10124), 2550 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-14 02:02:46,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41962 states to 41962 states and 58793 transitions. [2022-07-14 02:02:46,504 INFO L78 Accepts]: Start accepts. Automaton has 41962 states and 58793 transitions. Word has length 274 [2022-07-14 02:02:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:46,505 INFO L495 AbstractCegarLoop]: Abstraction has 41962 states and 58793 transitions. [2022-07-14 02:02:46,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-07-14 02:02:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 41962 states and 58793 transitions. [2022-07-14 02:02:46,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-14 02:02:46,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:46,514 INFO L195 NwaCegarLoop]: trace histogram [26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:46,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 02:02:46,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:46,724 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:46,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 311960414, now seen corresponding path program 1 times [2022-07-14 02:02:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:46,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694710779] [2022-07-14 02:02:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:02:46,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:46,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:46,727 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:02:46,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 02:02:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:02:48,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2827 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 02:02:48,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 286 proven. 28 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-07-14 02:02:49,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:02:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2022-07-14 02:02:52,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:52,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694710779] [2022-07-14 02:02:52,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694710779] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:02:52,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:02:52,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-07-14 02:02:52,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223910237] [2022-07-14 02:02:52,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:02:52,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-14 02:02:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-14 02:02:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-07-14 02:02:52,307 INFO L87 Difference]: Start difference. First operand 41962 states and 58793 transitions. Second operand has 23 states, 21 states have (on average 8.142857142857142) internal successors, (171), 23 states have internal predecessors, (171), 4 states have call successors, (48), 2 states have call predecessors, (48), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-14 02:02:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:02:55,373 INFO L93 Difference]: Finished difference Result 83964 states and 117686 transitions. [2022-07-14 02:02:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-14 02:02:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 8.142857142857142) internal successors, (171), 23 states have internal predecessors, (171), 4 states have call successors, (48), 2 states have call predecessors, (48), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 300 [2022-07-14 02:02:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:02:55,514 INFO L225 Difference]: With dead ends: 83964 [2022-07-14 02:02:55,514 INFO L226 Difference]: Without dead ends: 41979 [2022-07-14 02:02:55,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-07-14 02:02:55,598 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 32 mSDsluCounter, 22461 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 24713 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 02:02:55,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 24713 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 02:02:55,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41979 states. [2022-07-14 02:02:56,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41979 to 41979. [2022-07-14 02:02:56,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41979 states, 29304 states have (on average 1.3115956865956866) internal successors, (38435), 29736 states have internal predecessors, (38435), 10124 states have call successors, (10124), 2551 states have call predecessors, (10124), 2550 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-14 02:02:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41979 states to 41979 states and 58810 transitions. [2022-07-14 02:02:56,739 INFO L78 Accepts]: Start accepts. Automaton has 41979 states and 58810 transitions. Word has length 300 [2022-07-14 02:02:56,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:02:56,739 INFO L495 AbstractCegarLoop]: Abstraction has 41979 states and 58810 transitions. [2022-07-14 02:02:56,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 8.142857142857142) internal successors, (171), 23 states have internal predecessors, (171), 4 states have call successors, (48), 2 states have call predecessors, (48), 5 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2022-07-14 02:02:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 41979 states and 58810 transitions. [2022-07-14 02:02:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-14 02:02:56,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:02:56,747 INFO L195 NwaCegarLoop]: trace histogram [28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:02:56,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-14 02:02:56,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:02:56,948 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:02:56,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:02:56,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1283115942, now seen corresponding path program 2 times [2022-07-14 02:02:56,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:02:56,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667397441] [2022-07-14 02:02:56,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:02:56,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:02:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:02:56,954 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:02:56,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 02:02:58,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:02:58,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:02:58,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 02:02:58,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:02:58,484 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-07-14 02:02:58,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:02:58,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:02:58,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667397441] [2022-07-14 02:02:58,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667397441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:02:58,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:02:58,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 02:02:58,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167097582] [2022-07-14 02:02:58,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:02:58,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:02:58,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:02:58,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:02:58,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:02:58,485 INFO L87 Difference]: Start difference. First operand 41979 states and 58810 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-14 02:03:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:03:02,062 INFO L93 Difference]: Finished difference Result 138799 states and 204462 transitions. [2022-07-14 02:03:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 02:03:02,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 302 [2022-07-14 02:03:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:03:02,384 INFO L225 Difference]: With dead ends: 138799 [2022-07-14 02:03:02,384 INFO L226 Difference]: Without dead ends: 96873 [2022-07-14 02:03:02,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-14 02:03:02,606 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 4426 mSDsluCounter, 17225 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 21560 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1595 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:03:02,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 21560 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1595 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 02:03:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96873 states. [2022-07-14 02:03:04,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96873 to 42059. [2022-07-14 02:03:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42059 states, 29384 states have (on average 1.3112918595153826) internal successors, (38531), 29816 states have internal predecessors, (38531), 10124 states have call successors, (10124), 2551 states have call predecessors, (10124), 2550 states have return successors, (10251), 10037 states have call predecessors, (10251), 10123 states have call successors, (10251) [2022-07-14 02:03:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42059 states to 42059 states and 58906 transitions. [2022-07-14 02:03:04,356 INFO L78 Accepts]: Start accepts. Automaton has 42059 states and 58906 transitions. Word has length 302 [2022-07-14 02:03:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:03:04,356 INFO L495 AbstractCegarLoop]: Abstraction has 42059 states and 58906 transitions. [2022-07-14 02:03:04,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-14 02:03:04,356 INFO L276 IsEmpty]: Start isEmpty. Operand 42059 states and 58906 transitions. [2022-07-14 02:03:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-14 02:03:04,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:03:04,363 INFO L195 NwaCegarLoop]: trace histogram [28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:03:04,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-14 02:03:04,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:03:04,564 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:03:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:03:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash 696309928, now seen corresponding path program 1 times [2022-07-14 02:03:04,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:03:04,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833517354] [2022-07-14 02:03:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:03:04,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:03:04,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:03:04,568 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:03:04,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 02:03:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:03:07,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2849 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:03:07,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:03:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-07-14 02:03:07,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:03:07,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:03:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833517354] [2022-07-14 02:03:07,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833517354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:03:07,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:03:07,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:03:07,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128323387] [2022-07-14 02:03:07,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:03:07,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:03:07,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:03:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:03:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:03:07,358 INFO L87 Difference]: Start difference. First operand 42059 states and 58906 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:03:09,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:03:09,249 INFO L93 Difference]: Finished difference Result 113951 states and 158938 transitions. [2022-07-14 02:03:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:03:09,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 302 [2022-07-14 02:03:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:03:09,518 INFO L225 Difference]: With dead ends: 113951 [2022-07-14 02:03:09,518 INFO L226 Difference]: Without dead ends: 71945 [2022-07-14 02:03:09,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:03:09,754 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 1833 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:03:09,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 5509 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:03:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71945 states. [2022-07-14 02:03:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71945 to 71846. [2022-07-14 02:03:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71846 states, 50411 states have (on average 1.309793497450953) internal successors, (66028), 51225 states have internal predecessors, (66028), 16873 states have call successors, (16873), 4562 states have call predecessors, (16873), 4561 states have return successors, (17064), 16684 states have call predecessors, (17064), 16872 states have call successors, (17064) [2022-07-14 02:03:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71846 states to 71846 states and 99965 transitions. [2022-07-14 02:03:11,853 INFO L78 Accepts]: Start accepts. Automaton has 71846 states and 99965 transitions. Word has length 302 [2022-07-14 02:03:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:03:11,854 INFO L495 AbstractCegarLoop]: Abstraction has 71846 states and 99965 transitions. [2022-07-14 02:03:11,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:03:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 71846 states and 99965 transitions. [2022-07-14 02:03:11,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-07-14 02:03:11,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:03:11,865 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:03:11,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-14 02:03:12,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:03:12,066 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:03:12,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:03:12,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1111120296, now seen corresponding path program 1 times [2022-07-14 02:03:12,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:03:12,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284213926] [2022-07-14 02:03:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:03:12,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:03:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:03:12,071 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:03:12,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 02:03:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:03:15,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:03:15,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:03:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-14 02:03:15,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:03:15,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:03:15,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284213926] [2022-07-14 02:03:15,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284213926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:03:15,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:03:15,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:03:15,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399227242] [2022-07-14 02:03:15,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:03:15,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:03:15,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:03:15,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:03:15,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:03:15,208 INFO L87 Difference]: Start difference. First operand 71846 states and 99965 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:03:16,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:03:16,950 INFO L93 Difference]: Finished difference Result 144919 states and 201787 transitions. [2022-07-14 02:03:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:03:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 343 [2022-07-14 02:03:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:03:17,379 INFO L225 Difference]: With dead ends: 144919 [2022-07-14 02:03:17,379 INFO L226 Difference]: Without dead ends: 73126 [2022-07-14 02:03:17,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:03:17,543 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 24 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:03:17,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4507 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:03:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73126 states. [2022-07-14 02:03:19,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73126 to 72870. [2022-07-14 02:03:19,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72870 states, 51371 states have (on average 1.3127250783515991) internal successors, (67436), 52185 states have internal predecessors, (67436), 16937 states have call successors, (16937), 4562 states have call predecessors, (16937), 4561 states have return successors, (17128), 16748 states have call predecessors, (17128), 16936 states have call successors, (17128) [2022-07-14 02:03:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72870 states to 72870 states and 101501 transitions. [2022-07-14 02:03:19,689 INFO L78 Accepts]: Start accepts. Automaton has 72870 states and 101501 transitions. Word has length 343 [2022-07-14 02:03:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:03:19,690 INFO L495 AbstractCegarLoop]: Abstraction has 72870 states and 101501 transitions. [2022-07-14 02:03:19,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:03:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 72870 states and 101501 transitions. [2022-07-14 02:03:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-07-14 02:03:19,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:03:19,700 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:03:19,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 02:03:19,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:03:19,920 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:03:19,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:03:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash -65640987, now seen corresponding path program 1 times [2022-07-14 02:03:19,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:03:19,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174944153] [2022-07-14 02:03:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:03:19,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:03:19,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:03:19,923 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:03:20,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 02:03:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:03:22,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:03:22,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:03:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 148 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-07-14 02:03:22,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:03:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2022-07-14 02:03:23,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:03:23,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174944153] [2022-07-14 02:03:23,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174944153] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:03:23,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 02:03:23,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 02:03:23,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253710964] [2022-07-14 02:03:23,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 02:03:23,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:03:23,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:03:23,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:03:23,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:03:23,215 INFO L87 Difference]: Start difference. First operand 72870 states and 101501 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-07-14 02:03:25,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:03:25,319 INFO L93 Difference]: Finished difference Result 147223 states and 205115 transitions. [2022-07-14 02:03:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:03:25,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 355 [2022-07-14 02:03:25,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:03:25,569 INFO L225 Difference]: With dead ends: 147223 [2022-07-14 02:03:25,570 INFO L226 Difference]: Without dead ends: 74406 [2022-07-14 02:03:25,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:03:25,726 INFO L413 NwaCegarLoop]: 2275 mSDtfsCounter, 73 mSDsluCounter, 8975 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 11250 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:03:25,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 11250 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:03:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74406 states. [2022-07-14 02:03:27,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74406 to 74150. [2022-07-14 02:03:27,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74150 states, 52587 states have (on average 1.31401296898473) internal successors, (69100), 53401 states have internal predecessors, (69100), 17001 states have call successors, (17001), 4562 states have call predecessors, (17001), 4561 states have return successors, (17192), 16812 states have call predecessors, (17192), 17000 states have call successors, (17192) [2022-07-14 02:03:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74150 states to 74150 states and 103293 transitions. [2022-07-14 02:03:27,809 INFO L78 Accepts]: Start accepts. Automaton has 74150 states and 103293 transitions. Word has length 355 [2022-07-14 02:03:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:03:27,809 INFO L495 AbstractCegarLoop]: Abstraction has 74150 states and 103293 transitions. [2022-07-14 02:03:27,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-07-14 02:03:27,810 INFO L276 IsEmpty]: Start isEmpty. Operand 74150 states and 103293 transitions. [2022-07-14 02:03:27,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-07-14 02:03:27,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:03:27,824 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:03:27,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-14 02:03:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:03:28,036 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:03:28,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:03:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1651194354, now seen corresponding path program 2 times [2022-07-14 02:03:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:03:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988852600] [2022-07-14 02:03:28,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:03:28,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:03:28,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:03:28,039 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:03:28,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 02:03:29,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 02:03:29,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:03:29,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 02:03:29,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:03:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2022-07-14 02:03:29,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:03:29,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:03:29,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988852600] [2022-07-14 02:03:29,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988852600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:03:29,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:03:29,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:03:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89865480] [2022-07-14 02:03:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:03:29,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:03:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:03:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:03:29,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 02:03:29,640 INFO L87 Difference]: Start difference. First operand 74150 states and 103293 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-14 02:03:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:03:31,991 INFO L93 Difference]: Finished difference Result 148273 states and 206927 transitions. [2022-07-14 02:03:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 02:03:31,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 367 [2022-07-14 02:03:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:03:32,219 INFO L225 Difference]: With dead ends: 148273 [2022-07-14 02:03:32,219 INFO L226 Difference]: Without dead ends: 74176 [2022-07-14 02:03:32,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:03:32,371 INFO L413 NwaCegarLoop]: 2935 mSDtfsCounter, 1069 mSDsluCounter, 4558 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:03:32,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 7493 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 02:03:32,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74176 states. [2022-07-14 02:03:34,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74176 to 71862. [2022-07-14 02:03:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71862 states, 50971 states have (on average 1.3158070275254556) internal successors, (67068), 51753 states have internal predecessors, (67068), 16409 states have call successors, (16409), 4482 states have call predecessors, (16409), 4481 states have return successors, (16576), 16236 states have call predecessors, (16576), 16408 states have call successors, (16576) [2022-07-14 02:03:34,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71862 states to 71862 states and 100053 transitions. [2022-07-14 02:03:34,620 INFO L78 Accepts]: Start accepts. Automaton has 71862 states and 100053 transitions. Word has length 367 [2022-07-14 02:03:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:03:34,621 INFO L495 AbstractCegarLoop]: Abstraction has 71862 states and 100053 transitions. [2022-07-14 02:03:34,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-14 02:03:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 71862 states and 100053 transitions. [2022-07-14 02:03:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-07-14 02:03:34,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:03:34,630 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:03:34,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 02:03:34,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 02:03:34,830 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:03:34,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:03:34,831 INFO L85 PathProgramCache]: Analyzing trace with hash 906091915, now seen corresponding path program 1 times [2022-07-14 02:03:34,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 02:03:34,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639938573] [2022-07-14 02:03:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:03:34,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 02:03:34,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 02:03:34,834 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 02:03:34,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-14 02:03:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:03:37,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:03:37,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:03:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-07-14 02:03:37,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:03:37,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 02:03:37,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639938573] [2022-07-14 02:03:37,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639938573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:03:37,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:03:37,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 02:03:37,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775210313] [2022-07-14 02:03:37,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:03:37,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:03:37,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 02:03:37,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:03:37,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 02:03:37,711 INFO L87 Difference]: Start difference. First operand 71862 states and 100053 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:03:39,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []