./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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-32_7a-drivers--hwmon--it87.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 5a989f4e4a3aacdd59050e92fbc137ca8587ab53a966b56d72019bc54a6301ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:08:04,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:08:04,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:08:04,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:08:04,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:08:04,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:08:04,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:08:04,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:08:04,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:08:04,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:08:04,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:08:04,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:08:04,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:08:04,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:08:04,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:08:04,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:08:04,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:08:04,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:08:04,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:08:04,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:08:04,943 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:08:04,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:08:04,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:08:04,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:08:04,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:08:04,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:08:04,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:08:04,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:08:04,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:08:04,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:08:04,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:08:04,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:08:04,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:08:04,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:08:04,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:08:04,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:08:04,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:08:04,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:08:04,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:08:04,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:08:04,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:08:04,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:08:04,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:08:05,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:08:05,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:08:05,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:08:05,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:08:05,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:08:05,013 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:08:05,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:08:05,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:08:05,014 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:08:05,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:08:05,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:08:05,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:08:05,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:08:05,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:08:05,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:08:05,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:08:05,016 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:08:05,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:08:05,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:08:05,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:08:05,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:08:05,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:08:05,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:08:05,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:08:05,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:08:05,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:08:05,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:08:05,019 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:08:05,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:08:05,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:08:05,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a989f4e4a3aacdd59050e92fbc137ca8587ab53a966b56d72019bc54a6301ad [2022-07-21 12:08:05,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:08:05,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:08:05,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:08:05,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:08:05,326 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:08:05,328 INFO L432 ainManager$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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i [2022-07-21 12:08:05,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30cac2802/648eb2bd286e4544b0f0a47e743c4093/FLAG65671e7a8 [2022-07-21 12:08:06,217 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:08:06,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i [2022-07-21 12:08:06,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30cac2802/648eb2bd286e4544b0f0a47e743c4093/FLAG65671e7a8 [2022-07-21 12:08:06,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30cac2802/648eb2bd286e4544b0f0a47e743c4093 [2022-07-21 12:08:06,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:08:06,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:08:06,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:08:06,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:08:06,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:08:06,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:08:06" (1/1) ... [2022-07-21 12:08:06,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bafbc4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:06, skipping insertion in model container [2022-07-21 12:08:06,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:08:06" (1/1) ... [2022-07-21 12:08:06,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:08:06,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:08:09,230 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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i[424639,424652] [2022-07-21 12:08:09,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:08:09,633 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:08:09,849 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: val = (unsigned long )old & 128UL [4816] 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:1845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:314) 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) [2022-07-21 12:08:09,856 INFO L158 Benchmark]: Toolchain (without parser) took 3128.33ms. Allocated memory was 52.4MB in the beginning and 107.0MB in the end (delta: 54.5MB). Free memory was 23.1MB in the beginning and 34.7MB in the end (delta: -11.6MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-07-21 12:08:09,856 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 12:08:09,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3126.71ms. Allocated memory was 52.4MB in the beginning and 107.0MB in the end (delta: 54.5MB). Free memory was 22.8MB in the beginning and 34.7MB in the end (delta: -11.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-07-21 12:08:09,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3126.71ms. Allocated memory was 52.4MB in the beginning and 107.0MB in the end (delta: 54.5MB). Free memory was 22.8MB in the beginning and 34.7MB in the end (delta: -11.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned long )old & 128UL [4816] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned long )old & 128UL [4816]: 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-32_7a-drivers--hwmon--it87.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 5a989f4e4a3aacdd59050e92fbc137ca8587ab53a966b56d72019bc54a6301ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:08:11,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:08:11,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:08:11,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:08:11,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:08:11,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:08:11,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:08:11,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:08:11,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:08:11,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:08:11,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:08:11,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:08:11,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:08:11,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:08:11,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:08:11,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:08:11,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:08:11,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:08:11,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:08:11,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:08:11,763 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:08:11,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:08:11,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:08:11,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:08:11,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:08:11,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:08:11,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:08:11,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:08:11,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:08:11,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:08:11,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:08:11,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:08:11,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:08:11,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:08:11,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:08:11,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:08:11,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:08:11,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:08:11,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:08:11,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:08:11,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:08:11,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:08:11,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 12:08:11,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:08:11,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:08:11,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:08:11,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:08:11,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:08:11,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:08:11,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:08:11,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:08:11,835 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:08:11,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:08:11,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:08:11,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:08:11,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:08:11,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:08:11,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 12:08:11,837 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 12:08:11,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 12:08:11,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:08:11,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:08:11,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:08:11,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:08:11,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:08:11,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:08:11,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:08:11,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:08:11,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:08:11,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:08:11,839 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 12:08:11,840 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 12:08:11,840 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:08:11,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:08:11,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:08:11,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 12:08:11,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a989f4e4a3aacdd59050e92fbc137ca8587ab53a966b56d72019bc54a6301ad [2022-07-21 12:08:12,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:08:12,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:08:12,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:08:12,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:08:12,214 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:08:12,216 INFO L432 ainManager$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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i [2022-07-21 12:08:12,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a82fd9b6/5fce2234028e437c8ff188dd577bf136/FLAG8b93efd64 [2022-07-21 12:08:13,116 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:08:13,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i [2022-07-21 12:08:13,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a82fd9b6/5fce2234028e437c8ff188dd577bf136/FLAG8b93efd64 [2022-07-21 12:08:13,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a82fd9b6/5fce2234028e437c8ff188dd577bf136 [2022-07-21 12:08:13,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:08:13,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:08:13,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:08:13,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:08:13,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:08:13,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:08:13" (1/1) ... [2022-07-21 12:08:13,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14df147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:13, skipping insertion in model container [2022-07-21 12:08:13,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:08:13" (1/1) ... [2022-07-21 12:08:13,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:08:13,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:08:16,038 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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i[424639,424652] [2022-07-21 12:08:16,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:08:16,417 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 12:08:16,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:08:16,881 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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i[424639,424652] [2022-07-21 12:08:16,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:08:16,956 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:08:17,331 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-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i[424639,424652] [2022-07-21 12:08:17,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:08:17,765 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:08:17,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17 WrapperNode [2022-07-21 12:08:17,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:08:17,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:08:17,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:08:17,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:08:17,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:17,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,214 INFO L137 Inliner]: procedures = 338, calls = 5840, calls flagged for inlining = 175, calls inlined = 170, statements flattened = 14645 [2022-07-21 12:08:18,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:08:18,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:08:18,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:08:18,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:08:18,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:08:18,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:08:18,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:08:18,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:08:18,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (1/1) ... [2022-07-21 12:08:18,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:08:18,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:08:18,658 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) [2022-07-21 12:08:18,669 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 [2022-07-21 12:08:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 12:08:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-21 12:08:18,698 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-21 12:08:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2022-07-21 12:08:18,698 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2022-07-21 12:08:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 12:08:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 12:08:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 12:08:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:08:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:08:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:08:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:08:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure adc_lsb [2022-07-21 12:08:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure adc_lsb [2022-07-21 12:08:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure set_pwm_enable [2022-07-21 12:08:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pwm_enable [2022-07-21 12:08:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure set_in [2022-07-21 12:08:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in [2022-07-21 12:08:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-07-21 12:08:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-07-21 12:08:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:08:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:08:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-07-21 12:08:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-07-21 12:08:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2022-07-21 12:08:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2022-07-21 12:08:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:08:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:08:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:08:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:08:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2022-07-21 12:08:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2022-07-21 12:08:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:08:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:08:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:08:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:08:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure it87_remove_files [2022-07-21 12:08:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_remove_files [2022-07-21 12:08:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2022-07-21 12:08:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2022-07-21 12:08:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2022-07-21 12:08:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2022-07-21 12:08:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:08:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:08:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_freq [2022-07-21 12:08:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_freq [2022-07-21 12:08:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2022-07-21 12:08:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2022-07-21 12:08:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure set_auto_pwm [2022-07-21 12:08:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auto_pwm [2022-07-21 12:08:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:08:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-07-21 12:08:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-07-21 12:08:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-07-21 12:08:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-07-21 12:08:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-07-21 12:08:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-07-21 12:08:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:08:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 12:08:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 12:08:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2022-07-21 12:08:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2022-07-21 12:08:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 12:08:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-07-21 12:08:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-07-21 12:08:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 12:08:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 12:08:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 12:08:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:08:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:08:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure show_auto_pwm [2022-07-21 12:08:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure show_auto_pwm [2022-07-21 12:08:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 12:08:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 12:08:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 12:08:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure it87_probe [2022-07-21 12:08:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_probe [2022-07-21 12:08:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2022-07-21 12:08:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2022-07-21 12:08:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_enable [2022-07-21 12:08:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_enable [2022-07-21 12:08:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_type [2022-07-21 12:08:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_type [2022-07-21 12:08:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 12:08:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 12:08:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_it87_data [2022-07-21 12:08:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_it87_data [2022-07-21 12:08:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2022-07-21 12:08:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2022-07-21 12:08:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-07-21 12:08:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-07-21 12:08:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 12:08:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 12:08:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-07-21 12:08:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-07-21 12:08:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure set_pwm_temp_map [2022-07-21 12:08:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pwm_temp_map [2022-07-21 12:08:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure set_auto_temp [2022-07-21 12:08:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auto_temp [2022-07-21 12:08:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm_temp_map [2022-07-21 12:08:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm_temp_map [2022-07-21 12:08:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-21 12:08:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-21 12:08:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure it87_write_value [2022-07-21 12:08:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_write_value [2022-07-21 12:08:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-07-21 12:08:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-07-21 12:08:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-07-21 12:08:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-07-21 12:08:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:08:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:08:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:08:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:08:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_type [2022-07-21 12:08:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_type [2022-07-21 12:08:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:08:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:08:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:08:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2022-07-21 12:08:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2022-07-21 12:08:18,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:08:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:08:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure it87_read_value [2022-07-21 12:08:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_read_value [2022-07-21 12:08:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure pwm_to_reg [2022-07-21 12:08:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pwm_to_reg [2022-07-21 12:08:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_it87_data [2022-07-21 12:08:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_it87_data [2022-07-21 12:08:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure show_label [2022-07-21 12:08:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure show_label [2022-07-21 12:08:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure set_beep [2022-07-21 12:08:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure set_beep [2022-07-21 12:08:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure set_pwm [2022-07-21 12:08:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pwm [2022-07-21 12:08:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-07-21 12:08:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-07-21 12:08:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-07-21 12:08:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-07-21 12:08:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp [2022-07-21 12:08:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp [2022-07-21 12:08:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure it87_remove [2022-07-21 12:08:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_remove [2022-07-21 12:08:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-07-21 12:08:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-07-21 12:08:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure it87_update_device [2022-07-21 12:08:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_update_device [2022-07-21 12:08:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure show_auto_temp [2022-07-21 12:08:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure show_auto_temp [2022-07-21 12:08:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 12:08:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 12:08:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure pwm_from_reg [2022-07-21 12:08:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pwm_from_reg [2022-07-21 12:08:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan [2022-07-21 12:08:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan [2022-07-21 12:08:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:08:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:08:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 12:08:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 12:08:20,238 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:08:20,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:08:20,585 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:08:58,339 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:08:58,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:08:58,381 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:08:58,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:08:58 BoogieIcfgContainer [2022-07-21 12:08:58,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:08:58,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:08:58,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:08:58,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:08:58,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:08:13" (1/3) ... [2022-07-21 12:08:58,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84d50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:08:58, skipping insertion in model container [2022-07-21 12:08:58,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:08:17" (2/3) ... [2022-07-21 12:08:58,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84d50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:08:58, skipping insertion in model container [2022-07-21 12:08:58,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:08:58" (3/3) ... [2022-07-21 12:08:58,397 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--it87.ko-entry_point.cil.out.i [2022-07-21 12:08:58,411 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:08:58,412 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:08:58,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:08:58,546 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@5ff1d3f6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71ab4e02 [2022-07-21 12:08:58,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:08:58,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 4141 states, 2825 states have (on average 1.4290265486725664) internal successors, (4037), 2981 states have internal predecessors, (4037), 1246 states have call successors, (1246), 69 states have call predecessors, (1246), 68 states have return successors, (1105), 1105 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 12:08:59,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6243 [2022-07-21 12:08:59,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:08:59,085 INFO L195 NwaCegarLoop]: trace histogram [333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 81, 81, 81, 81, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:08:59,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:08:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:08:59,098 INFO L85 PathProgramCache]: Analyzing trace with hash 896500142, now seen corresponding path program 1 times [2022-07-21 12:08:59,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:08:59,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627258452] [2022-07-21 12:08:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:08:59,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:08:59,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:08:59,149 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) [2022-07-21 12:08:59,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 12:09:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:00,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 28457 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 12:10:00,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:10:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 803052 backedges. 180220 proven. 0 refuted. 0 times theorem prover too weak. 622832 trivial. 0 not checked. [2022-07-21 12:10:01,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:10:01,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:10:01,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627258452] [2022-07-21 12:10:01,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627258452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:10:01,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:10:01,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:10:01,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783862503] [2022-07-21 12:10:01,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:10:01,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 12:10:01,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:10:01,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 12:10:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 12:10:01,180 INFO L87 Difference]: Start difference. First operand has 4141 states, 2825 states have (on average 1.4290265486725664) internal successors, (4037), 2981 states have internal predecessors, (4037), 1246 states have call successors, (1246), 69 states have call predecessors, (1246), 68 states have return successors, (1105), 1105 states have call predecessors, (1105), 1105 states have call successors, (1105) Second operand has 2 states, 2 states have (on average 228.0) internal successors, (456), 2 states have internal predecessors, (456), 2 states have call successors, (424), 2 states have call predecessors, (424), 2 states have return successors, (421), 2 states have call predecessors, (421), 2 states have call successors, (421) [2022-07-21 12:10:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:10:01,445 INFO L93 Difference]: Finished difference Result 8277 states and 13532 transitions. [2022-07-21 12:10:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 12:10:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 228.0) internal successors, (456), 2 states have internal predecessors, (456), 2 states have call successors, (424), 2 states have call predecessors, (424), 2 states have return successors, (421), 2 states have call predecessors, (421), 2 states have call successors, (421) Word has length 6242 [2022-07-21 12:10:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:10:01,488 INFO L225 Difference]: With dead ends: 8277 [2022-07-21 12:10:01,489 INFO L226 Difference]: Without dead ends: 3993 [2022-07-21 12:10:01,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6241 GetRequests, 6241 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 12:10:01,532 INFO L413 NwaCegarLoop]: 6379 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, 6379 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 [2022-07-21 12:10:01,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6379 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:10:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-07-21 12:10:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3993. [2022-07-21 12:10:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3993 states, 2820 states have (on average 1.3787234042553191) internal successors, (3888), 2833 states have internal predecessors, (3888), 1105 states have call successors, (1105), 68 states have call predecessors, (1105), 67 states have return successors, (1099), 1099 states have call predecessors, (1099), 1099 states have call successors, (1099) [2022-07-21 12:10:02,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 6092 transitions. [2022-07-21 12:10:02,017 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 6092 transitions. Word has length 6242 [2022-07-21 12:10:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:10:02,019 INFO L495 AbstractCegarLoop]: Abstraction has 3993 states and 6092 transitions. [2022-07-21 12:10:02,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 228.0) internal successors, (456), 2 states have internal predecessors, (456), 2 states have call successors, (424), 2 states have call predecessors, (424), 2 states have return successors, (421), 2 states have call predecessors, (421), 2 states have call successors, (421) [2022-07-21 12:10:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 6092 transitions. [2022-07-21 12:10:02,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6243 [2022-07-21 12:10:02,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:10:02,404 INFO L195 NwaCegarLoop]: trace histogram [333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 81, 81, 81, 81, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:10:02,606 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forcibly destroying the process [2022-07-21 12:10:02,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 137 [2022-07-21 12:10:02,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:10:02,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:10:02,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:10:02,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1221434568, now seen corresponding path program 1 times [2022-07-21 12:10:02,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:10:02,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72659278] [2022-07-21 12:10:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:10:02,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:10:02,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:10:02,766 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) [2022-07-21 12:10:02,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 12:10:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:00,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 28457 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 12:11:00,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:11:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 803052 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 802332 trivial. 0 not checked. [2022-07-21 12:11:00,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:11:00,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:11:00,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72659278] [2022-07-21 12:11:00,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72659278] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:00,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:00,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:00,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362866362] [2022-07-21 12:11:00,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:00,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:00,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:11:00,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:00,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:00,914 INFO L87 Difference]: Start difference. First operand 3993 states and 6092 transitions. Second operand has 6 states, 5 states have (on average 90.4) internal successors, (452), 6 states have internal predecessors, (452), 3 states have call successors, (423), 2 states have call predecessors, (423), 4 states have return successors, (419), 3 states have call predecessors, (419), 3 states have call successors, (419) [2022-07-21 12:11:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:04,080 INFO L93 Difference]: Finished difference Result 7322 states and 11268 transitions. [2022-07-21 12:11:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:11:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 90.4) internal successors, (452), 6 states have internal predecessors, (452), 3 states have call successors, (423), 2 states have call predecessors, (423), 4 states have return successors, (419), 3 states have call predecessors, (419), 3 states have call successors, (419) Word has length 6242 [2022-07-21 12:11:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:04,123 INFO L225 Difference]: With dead ends: 7322 [2022-07-21 12:11:04,123 INFO L226 Difference]: Without dead ends: 3994 [2022-07-21 12:11:04,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6243 GetRequests, 6237 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:11:04,143 INFO L413 NwaCegarLoop]: 6008 mSDtfsCounter, 6 mSDsluCounter, 23860 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 29868 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:04,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 29868 Invalid, 668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 12:11:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-07-21 12:11:04,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3994. [2022-07-21 12:11:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3994 states, 2821 states have (on average 1.3785891527827012) internal successors, (3889), 2834 states have internal predecessors, (3889), 1105 states have call successors, (1105), 68 states have call predecessors, (1105), 67 states have return successors, (1099), 1099 states have call predecessors, (1099), 1099 states have call successors, (1099) [2022-07-21 12:11:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 6093 transitions. [2022-07-21 12:11:04,432 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 6093 transitions. Word has length 6242 [2022-07-21 12:11:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:04,444 INFO L495 AbstractCegarLoop]: Abstraction has 3994 states and 6093 transitions. [2022-07-21 12:11:04,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 90.4) internal successors, (452), 6 states have internal predecessors, (452), 3 states have call successors, (423), 2 states have call predecessors, (423), 4 states have return successors, (419), 3 states have call predecessors, (419), 3 states have call successors, (419) [2022-07-21 12:11:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 6093 transitions. [2022-07-21 12:11:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6324 [2022-07-21 12:11:04,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:04,687 INFO L195 NwaCegarLoop]: trace histogram [333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 333, 81, 81, 81, 81, 81, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:11:04,887 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2022-07-21 12:11:05,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 137 [2022-07-21 12:11:05,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:11:05,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1454057125, now seen corresponding path program 1 times [2022-07-21 12:11:05,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:11:05,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439612753] [2022-07-21 12:11:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:05,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:11:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:11:05,046 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) [2022-07-21 12:11:05,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 12:12:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:14,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 29348 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 12:12:14,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:12:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 812853 backedges. 960 proven. 1 refuted. 0 times theorem prover too weak. 811892 trivial. 0 not checked. [2022-07-21 12:12:15,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:12:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 812853 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 812052 trivial. 0 not checked. [2022-07-21 12:12:20,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:12:20,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439612753] [2022-07-21 12:12:20,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439612753] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:12:20,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:12:20,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-21 12:12:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69275045] [2022-07-21 12:12:20,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:12:20,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:12:20,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:12:20,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:12:20,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:12:20,099 INFO L87 Difference]: Start difference. First operand 3994 states and 6093 transitions. Second operand has 11 states, 9 states have (on average 52.111111111111114) internal successors, (469), 11 states have internal predecessors, (469), 4 states have call successors, (506), 2 states have call predecessors, (506), 5 states have return successors, (503), 4 states have call predecessors, (503), 4 states have call successors, (503)