./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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.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 e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:11:53,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:11:53,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:11:53,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:11:53,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:11:53,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:11:53,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:11:53,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:11:53,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:11:53,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:11:53,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:11:53,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:11:53,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:11:53,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:11:53,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:11:53,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:11:53,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:11:53,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:11:53,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:11:53,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:11:53,915 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:11:53,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:11:53,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:11:53,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:11:53,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:11:53,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:11:53,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:11:53,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:11:53,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:11:53,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:11:53,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:11:53,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:11:53,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:11:53,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:11:53,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:11:53,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:11:53,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:11:53,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:11:53,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:11:53,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:11:53,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:11:53,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:11:53,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:11:53,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:11:53,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:11:53,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:11:53,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:11:53,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:11:53,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:11:53,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:11:53,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:11:53,957 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:11:53,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:11:53,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:11:53,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:11:53,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:11:53,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:11:53,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:11:53,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:11:53,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:11:53,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:11:53,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:11:53,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:11:53,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:11:53,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:11:53,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:11:53,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:11:53,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:11:53,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:11:53,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:11:53,960 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:11:53,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:11:53,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:11:53,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 [2022-07-12 13:11:54,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:11:54,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:11:54,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:11:54,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:11:54,205 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:11:54,207 INFO L432 ainManager$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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-12 13:11:54,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283660e67/69aa5b71871b49b7b471023ea122b817/FLAG17c6f5e4d [2022-07-12 13:11:54,866 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:11:54,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-12 13:11:54,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283660e67/69aa5b71871b49b7b471023ea122b817/FLAG17c6f5e4d [2022-07-12 13:11:55,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283660e67/69aa5b71871b49b7b471023ea122b817 [2022-07-12 13:11:55,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:11:55,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:11:55,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:11:55,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:11:55,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:11:55,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:11:55" (1/1) ... [2022-07-12 13:11:55,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65501ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:11:55, skipping insertion in model container [2022-07-12 13:11:55,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:11:55" (1/1) ... [2022-07-12 13:11:55,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:11:55,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:11:56,002 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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-12 13:11:56,027 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 13:11:56,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:11:56,073 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:11:56,190 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: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 13:11:56,197 INFO L158 Benchmark]: Toolchain (without parser) took 1139.15ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 73.9MB in the beginning and 86.7MB in the end (delta: -12.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-07-12 13:11:56,198 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:11:56,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1137.72ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 73.9MB in the beginning and 86.8MB in the end (delta: -12.9MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-07-12 13:11:56,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1137.72ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 73.9MB in the beginning and 86.8MB in the end (delta: -12.9MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: mgmt_1 = (unsigned int )mgmt_1 & 248U [4711]: 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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.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 e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:11:57,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:11:57,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:11:57,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:11:57,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:11:57,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:11:57,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:11:57,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:11:57,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:11:57,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:11:57,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:11:57,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:11:57,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:11:57,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:11:57,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:11:57,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:11:57,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:11:57,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:11:57,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:11:57,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:11:57,712 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:11:57,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:11:57,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:11:57,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:11:57,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:11:57,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:11:57,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:11:57,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:11:57,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:11:57,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:11:57,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:11:57,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:11:57,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:11:57,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:11:57,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:11:57,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:11:57,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:11:57,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:11:57,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:11:57,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:11:57,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:11:57,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:11:57,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:11:57,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:11:57,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:11:57,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:11:57,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:11:57,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:11:57,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:11:57,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:11:57,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:11:57,771 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:11:57,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:11:57,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:11:57,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:11:57,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:11:57,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:11:57,772 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:11:57,772 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:11:57,772 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:11:57,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:11:57,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:11:57,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:11:57,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:11:57,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:11:57,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:11:57,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:11:57,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:11:57,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:11:57,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:11:57,773 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:11:57,774 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:11:57,774 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:11:57,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:11:57,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:11:57,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:11:57,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6c477e3f3753c58922818522be04156e728e59c50f004b5ce835b763e4b3e35 [2022-07-12 13:11:58,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:11:58,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:11:58,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:11:58,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:11:58,069 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:11:58,071 INFO L432 ainManager$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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-12 13:11:58,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd3b1c6d/ee2801fddd3b47498473638328df7fc6/FLAG62e64337e [2022-07-12 13:11:58,741 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:11:58,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-12 13:11:58,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd3b1c6d/ee2801fddd3b47498473638328df7fc6/FLAG62e64337e [2022-07-12 13:11:58,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd3b1c6d/ee2801fddd3b47498473638328df7fc6 [2022-07-12 13:11:58,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:11:58,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:11:58,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:11:58,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:11:58,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:11:58,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:11:58" (1/1) ... [2022-07-12 13:11:58,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c48d849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:11:58, skipping insertion in model container [2022-07-12 13:11:58,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:11:58" (1/1) ... [2022-07-12 13:11:58,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:11:59,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:11:59,877 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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-12 13:11:59,899 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 13:11:59,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:11:59,966 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:12:00,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:12:00,196 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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-12 13:12:00,202 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 13:12:00,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:12:00,236 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:12:00,412 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-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i[208384,208397] [2022-07-12 13:12:00,417 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 13:12:00,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:12:00,503 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:12:00,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00 WrapperNode [2022-07-12 13:12:00,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:12:00,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:12:00,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:12:00,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:12:00,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,736 INFO L137 Inliner]: procedures = 227, calls = 1352, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3540 [2022-07-12 13:12:00,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:12:00,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:12:00,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:12:00,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:12:00,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:12:00,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:12:00,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:12:00,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:12:00,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (1/1) ... [2022-07-12 13:12:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:12:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:12:00,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:12:00,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:12:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:12:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 13:12:00,935 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 13:12:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:12:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:12:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:12:00,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 13:12:00,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:12:00,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:12:00,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:12:00,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:12:00,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:12:00,936 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_sensor_show [2022-07-12 13:12:00,936 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_sensor_show [2022-07-12 13:12:00,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:12:00,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:12:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2022-07-12 13:12:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2022-07-12 13:12:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:12:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:12:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:12:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:12:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:12:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:12:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:12:00,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:12:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu_suspend [2022-07-12 13:12:00,968 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu_suspend [2022-07-12 13:12:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:12:00,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:12:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure iio_trigger_notify_done [2022-07-12 13:12:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_trigger_notify_done [2022-07-12 13:12:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:12:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:12:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 13:12:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 13:12:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 13:12:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_irq_handler [2022-07-12 13:12:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_irq_handler [2022-07-12 13:12:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:12:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:12:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure iio_triggered_buffer_cleanup [2022-07-12 13:12:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_triggered_buffer_cleanup [2022-07-12 13:12:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:12:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:12:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure inv_attr_show [2022-07-12 13:12:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_attr_show [2022-07-12 13:12:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 13:12:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:12:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:12:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-12 13:12:00,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-12 13:12:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:12:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 13:12:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:12:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:12:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 13:12:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_remove_trigger [2022-07-12 13:12:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_remove_trigger [2022-07-12 13:12:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 13:12:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 13:12:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 13:12:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 13:12:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_read_fifo [2022-07-12 13:12:00,975 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_read_fifo [2022-07-12 13:12:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_set_power_itg [2022-07-12 13:12:00,975 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_set_power_itg [2022-07-12 13:12:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-12 13:12:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-12 13:12:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2022-07-12 13:12:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2022-07-12 13:12:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu_resume [2022-07-12 13:12:00,993 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu_resume [2022-07-12 13:12:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_switch_engine [2022-07-12 13:12:00,993 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_switch_engine [2022-07-12 13:12:00,993 INFO L130 BoogieDeclarations]: Found specification of procedure to_acpi_node [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure to_acpi_node [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure iio_priv [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_priv [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure iio_device_unregister [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure iio_device_unregister [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:12:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:12:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_validate_trigger [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_validate_trigger [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_mux_adapter [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_mux_adapter [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_i2c_block_data [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_i2c_block_data [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_iio_dev [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_iio_dev [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure inv_reset_fifo [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_reset_fifo [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 13:12:00,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:12:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:12:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:12:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure inv_mpu6050_write_reg [2022-07-12 13:12:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure inv_mpu6050_write_reg [2022-07-12 13:12:01,499 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:12:01,501 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:12:01,613 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:12:59,506 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:12:59,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:12:59,516 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:12:59,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:12:59 BoogieIcfgContainer [2022-07-12 13:12:59,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:12:59,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:12:59,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:12:59,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:12:59,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:11:58" (1/3) ... [2022-07-12 13:12:59,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cd08fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:12:59, skipping insertion in model container [2022-07-12 13:12:59,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:12:00" (2/3) ... [2022-07-12 13:12:59,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cd08fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:12:59, skipping insertion in model container [2022-07-12 13:12:59,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:12:59" (3/3) ... [2022-07-12 13:12:59,523 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--iio--imu--inv_mpu6050--inv-mpu6050.ko-entry_point.cil.out.i [2022-07-12 13:12:59,532 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:12:59,532 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:12:59,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:12:59,601 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@68096d38, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7c6aaece [2022-07-12 13:12:59,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:12:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 1037 states, 786 states have (on average 1.4287531806615776) internal successors, (1123), 801 states have internal predecessors, (1123), 205 states have call successors, (205), 45 states have call predecessors, (205), 44 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2022-07-12 13:12:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-12 13:12:59,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:12:59,636 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:12:59,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:12:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:12:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash 175591800, now seen corresponding path program 1 times [2022-07-12 13:12:59,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:12:59,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090140695] [2022-07-12 13:12:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:12:59,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:12:59,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:12:59,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:12:59,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:13:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:01,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 13:13:01,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2022-07-12 13:13:02,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:13:02,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:02,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090140695] [2022-07-12 13:13:02,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090140695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:13:02,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:13:02,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:13:02,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128639877] [2022-07-12 13:13:02,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:13:02,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 13:13:02,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 13:13:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:13:02,055 INFO L87 Difference]: Start difference. First operand has 1037 states, 786 states have (on average 1.4287531806615776) internal successors, (1123), 801 states have internal predecessors, (1123), 205 states have call successors, (205), 45 states have call predecessors, (205), 44 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 13:13:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:02,141 INFO L93 Difference]: Finished difference Result 2069 states and 3070 transitions. [2022-07-12 13:13:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 13:13:02,142 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 317 [2022-07-12 13:13:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:02,156 INFO L225 Difference]: With dead ends: 2069 [2022-07-12 13:13:02,157 INFO L226 Difference]: Without dead ends: 1020 [2022-07-12 13:13:02,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:13:02,176 INFO L413 NwaCegarLoop]: 1519 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, 1519 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 [2022-07-12 13:13:02,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:13:02,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-07-12 13:13:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2022-07-12 13:13:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 781 states have (on average 1.4148527528809218) internal successors, (1105), 784 states have internal predecessors, (1105), 195 states have call successors, (195), 44 states have call predecessors, (195), 43 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-12 13:13:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1494 transitions. [2022-07-12 13:13:02,268 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1494 transitions. Word has length 317 [2022-07-12 13:13:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:02,268 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1494 transitions. [2022-07-12 13:13:02,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 13:13:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1494 transitions. [2022-07-12 13:13:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-12 13:13:02,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:02,274 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:13:02,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:02,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:02,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:02,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -464706278, now seen corresponding path program 1 times [2022-07-12 13:13:02,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:02,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760463831] [2022-07-12 13:13:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:13:02,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:02,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:02,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:13:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:04,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:13:04,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2022-07-12 13:13:05,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:13:05,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:05,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760463831] [2022-07-12 13:13:05,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760463831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:13:05,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:13:05,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:13:05,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835887773] [2022-07-12 13:13:05,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:13:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:13:05,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:05,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:13:05,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:13:05,434 INFO L87 Difference]: Start difference. First operand 1020 states and 1494 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 13:13:06,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:06,928 INFO L93 Difference]: Finished difference Result 2012 states and 2951 transitions. [2022-07-12 13:13:06,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:13:06,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 317 [2022-07-12 13:13:06,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:06,948 INFO L225 Difference]: With dead ends: 2012 [2022-07-12 13:13:06,950 INFO L226 Difference]: Without dead ends: 1021 [2022-07-12 13:13:06,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:13:06,955 INFO L413 NwaCegarLoop]: 1485 mSDtfsCounter, 6 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7403 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:13:06,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7403 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 13:13:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2022-07-12 13:13:06,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2022-07-12 13:13:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 782 states have (on average 1.4143222506393862) internal successors, (1106), 785 states have internal predecessors, (1106), 195 states have call successors, (195), 44 states have call predecessors, (195), 43 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-12 13:13:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1495 transitions. [2022-07-12 13:13:07,008 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1495 transitions. Word has length 317 [2022-07-12 13:13:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:07,011 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1495 transitions. [2022-07-12 13:13:07,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 13:13:07,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1495 transitions. [2022-07-12 13:13:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-12 13:13:07,020 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:07,020 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:13:07,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 13:13:07,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:07,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:07,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1919425372, now seen corresponding path program 1 times [2022-07-12 13:13:07,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:07,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332022351] [2022-07-12 13:13:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:13:07,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:07,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:07,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:07,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:13:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:09,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:13:09,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2022-07-12 13:13:10,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:13:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-07-12 13:13:13,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:13,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332022351] [2022-07-12 13:13:13,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332022351] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:13:13,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:13:13,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 13:13:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056112173] [2022-07-12 13:13:13,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:13:13,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 13:13:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:13,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 13:13:13,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:13:13,654 INFO L87 Difference]: Start difference. First operand 1021 states and 1495 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-12 13:13:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:16,612 INFO L93 Difference]: Finished difference Result 2024 states and 2967 transitions. [2022-07-12 13:13:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 13:13:16,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 322 [2022-07-12 13:13:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:16,623 INFO L225 Difference]: With dead ends: 2024 [2022-07-12 13:13:16,624 INFO L226 Difference]: Without dead ends: 1037 [2022-07-12 13:13:16,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:13:16,632 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 12 mSDsluCounter, 7398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8886 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:13:16,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8886 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 13:13:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-12 13:13:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2022-07-12 13:13:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 793 states have (on average 1.4098360655737705) internal successors, (1118), 796 states have internal predecessors, (1118), 197 states have call successors, (197), 47 states have call predecessors, (197), 46 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2022-07-12 13:13:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1511 transitions. [2022-07-12 13:13:16,660 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1511 transitions. Word has length 322 [2022-07-12 13:13:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:16,661 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1511 transitions. [2022-07-12 13:13:16,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-12 13:13:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1511 transitions. [2022-07-12 13:13:16,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-12 13:13:16,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:16,667 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:13:16,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:16,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:16,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:16,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1749695910, now seen corresponding path program 2 times [2022-07-12 13:13:16,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:16,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144320692] [2022-07-12 13:13:16,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:13:16,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:16,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:16,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:16,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:13:18,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:13:18,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:13:18,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:13:18,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1655 trivial. 0 not checked. [2022-07-12 13:13:19,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:13:19,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:19,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144320692] [2022-07-12 13:13:19,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144320692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:13:19,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:13:19,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:13:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644455743] [2022-07-12 13:13:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:13:19,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:13:19,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:13:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:13:19,338 INFO L87 Difference]: Start difference. First operand 1037 states and 1511 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-12 13:13:22,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:13:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:23,224 INFO L93 Difference]: Finished difference Result 2979 states and 4355 transitions. [2022-07-12 13:13:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:13:23,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 327 [2022-07-12 13:13:23,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:23,235 INFO L225 Difference]: With dead ends: 2979 [2022-07-12 13:13:23,235 INFO L226 Difference]: Without dead ends: 1995 [2022-07-12 13:13:23,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:13:23,240 INFO L413 NwaCegarLoop]: 1678 mSDtfsCounter, 1386 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:13:23,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-07-12 13:13:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2022-07-12 13:13:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2022-07-12 13:13:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1539 states have (on average 1.4197530864197532) internal successors, (2185), 1545 states have internal predecessors, (2185), 365 states have call successors, (365), 91 states have call predecessors, (365), 90 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2022-07-12 13:13:23,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2914 transitions. [2022-07-12 13:13:23,297 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2914 transitions. Word has length 327 [2022-07-12 13:13:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:23,300 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2914 transitions. [2022-07-12 13:13:23,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-12 13:13:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2914 transitions. [2022-07-12 13:13:23,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-12 13:13:23,304 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:23,305 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:13:23,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:23,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:23,515 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:23,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1048183032, now seen corresponding path program 1 times [2022-07-12 13:13:23,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:23,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495970900] [2022-07-12 13:13:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:13:23,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:23,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:23,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:23,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:13:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:13:25,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 13:13:25,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:13:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2022-07-12 13:13:27,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:13:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2022-07-12 13:13:34,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:13:34,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495970900] [2022-07-12 13:13:34,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495970900] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:13:34,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:13:34,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 13:13:34,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069672048] [2022-07-12 13:13:34,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:13:34,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 13:13:34,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:13:34,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 13:13:34,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:13:34,076 INFO L87 Difference]: Start difference. First operand 1995 states and 2914 transitions. Second operand has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-12 13:13:41,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:13:41,312 INFO L93 Difference]: Finished difference Result 3968 states and 5797 transitions. [2022-07-12 13:13:41,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 13:13:41,324 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 330 [2022-07-12 13:13:41,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:13:41,332 INFO L225 Difference]: With dead ends: 3968 [2022-07-12 13:13:41,332 INFO L226 Difference]: Without dead ends: 1997 [2022-07-12 13:13:41,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-12 13:13:41,339 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 20 mSDsluCounter, 10365 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11854 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:13:41,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11854 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 13:13:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-07-12 13:13:41,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1997. [2022-07-12 13:13:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1541 states have (on average 1.419208306294614) internal successors, (2187), 1547 states have internal predecessors, (2187), 365 states have call successors, (365), 91 states have call predecessors, (365), 90 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2022-07-12 13:13:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2916 transitions. [2022-07-12 13:13:41,385 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2916 transitions. Word has length 330 [2022-07-12 13:13:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:13:41,385 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 2916 transitions. [2022-07-12 13:13:41,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-12 13:13:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2916 transitions. [2022-07-12 13:13:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-07-12 13:13:41,389 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:13:41,390 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:13:41,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:13:41,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:13:41,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:13:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:13:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash -472066826, now seen corresponding path program 2 times [2022-07-12 13:13:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:13:41,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105836601] [2022-07-12 13:13:41,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:13:41,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:13:41,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:13:41,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:13:41,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:13:43,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:13:43,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:13:43,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:13:43,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:14:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-07-12 13:14:01,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:14:01,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:14:01,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105836601] [2022-07-12 13:14:01,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105836601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:14:01,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:14:01,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:14:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077914135] [2022-07-12 13:14:01,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:14:01,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:14:01,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:14:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:14:01,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:14:01,814 INFO L87 Difference]: Start difference. First operand 1997 states and 2916 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-12 13:14:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:14:01,968 INFO L93 Difference]: Finished difference Result 3941 states and 5761 transitions. [2022-07-12 13:14:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:14:01,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 335 [2022-07-12 13:14:01,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:14:01,989 INFO L225 Difference]: With dead ends: 3941 [2022-07-12 13:14:01,990 INFO L226 Difference]: Without dead ends: 3934 [2022-07-12 13:14:01,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:14:01,995 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1386 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:14:01,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3110 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:14:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-07-12 13:14:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3934. [2022-07-12 13:14:02,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 3048 states have (on average 1.4229002624671916) internal successors, (4337), 3060 states have internal predecessors, (4337), 707 states have call successors, (707), 179 states have call predecessors, (707), 178 states have return successors, (708), 706 states have call predecessors, (708), 706 states have call successors, (708) [2022-07-12 13:14:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5752 transitions. [2022-07-12 13:14:02,094 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5752 transitions. Word has length 335 [2022-07-12 13:14:02,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:14:02,095 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5752 transitions. [2022-07-12 13:14:02,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-12 13:14:02,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5752 transitions. [2022-07-12 13:14:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-07-12 13:14:02,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:14:02,106 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:14:02,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:14:02,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:14:02,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:14:02,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:14:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1777899120, now seen corresponding path program 1 times [2022-07-12 13:14:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:14:02,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589482936] [2022-07-12 13:14:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:14:02,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:14:02,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:14:02,324 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:14:02,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 13:14:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:14:05,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 13:14:05,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:14:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 1663 trivial. 0 not checked. [2022-07-12 13:14:07,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:14:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-07-12 13:14:15,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:14:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589482936] [2022-07-12 13:14:15,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589482936] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:14:15,673 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:14:15,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 13:14:15,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332080660] [2022-07-12 13:14:15,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:14:15,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 13:14:15,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:14:15,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 13:14:15,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:14:15,675 INFO L87 Difference]: Start difference. First operand 3934 states and 5752 transitions. Second operand has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-12 13:14:23,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:14:23,066 INFO L93 Difference]: Finished difference Result 7852 states and 11481 transitions. [2022-07-12 13:14:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 13:14:23,067 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 451 [2022-07-12 13:14:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:14:23,087 INFO L225 Difference]: With dead ends: 7852 [2022-07-12 13:14:23,087 INFO L226 Difference]: Without dead ends: 3938 [2022-07-12 13:14:23,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 887 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-07-12 13:14:23,100 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 21 mSDsluCounter, 10375 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11864 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:14:23,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11864 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 13:14:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-12 13:14:23,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-12 13:14:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3052 states have (on average 1.422346002621232) internal successors, (4341), 3064 states have internal predecessors, (4341), 707 states have call successors, (707), 179 states have call predecessors, (707), 178 states have return successors, (708), 706 states have call predecessors, (708), 706 states have call successors, (708) [2022-07-12 13:14:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5756 transitions. [2022-07-12 13:14:23,187 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5756 transitions. Word has length 451 [2022-07-12 13:14:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:14:23,189 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5756 transitions. [2022-07-12 13:14:23,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 14.0) internal successors, (182), 15 states have internal predecessors, (182), 4 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2022-07-12 13:14:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5756 transitions. [2022-07-12 13:14:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-07-12 13:14:23,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:14:23,198 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:14:23,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:14:23,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:14:23,403 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:14:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:14:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1657615186, now seen corresponding path program 2 times [2022-07-12 13:14:23,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:14:23,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75861924] [2022-07-12 13:14:23,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:14:23,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:14:23,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:14:23,407 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:14:23,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process