./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:46:22,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:46:22,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:46:22,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:46:22,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:46:22,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:46:22,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:46:22,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:46:22,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:46:22,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:46:22,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:46:22,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:46:22,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:46:22,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:46:22,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:46:22,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:46:22,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:46:22,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:46:22,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:46:22,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:46:22,977 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:46:22,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:46:22,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:46:22,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:46:22,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:46:22,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:46:22,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:46:22,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:46:22,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:46:22,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:46:22,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:46:22,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:46:22,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:46:22,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:46:22,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:46:22,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:46:22,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:46:22,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:46:22,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:46:22,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:46:22,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:46:22,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:46:22,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:46:23,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:46:23,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:46:23,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:46:23,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:46:23,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:46:23,022 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:46:23,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:46:23,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:46:23,023 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:46:23,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:46:23,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:46:23,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:46:23,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:46:23,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:46:23,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:46:23,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:46:23,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:46:23,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:46:23,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:46:23,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:46:23,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:46:23,026 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:46:23,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:46:23,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:46:23,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-14 00:46:23,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:46:23,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:46:23,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:46:23,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:46:23,297 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:46:23,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:46:23,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfeea1b2/7b9e97884f914e088a778df34b6ccd8f/FLAGbddf58aec [2022-07-14 00:46:23,987 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:46:23,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:46:24,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfeea1b2/7b9e97884f914e088a778df34b6ccd8f/FLAGbddf58aec [2022-07-14 00:46:24,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfeea1b2/7b9e97884f914e088a778df34b6ccd8f [2022-07-14 00:46:24,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:46:24,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:46:24,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:46:24,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:46:24,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:46:24,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:46:24" (1/1) ... [2022-07-14 00:46:24,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c080f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:24, skipping insertion in model container [2022-07-14 00:46:24,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:46:24" (1/1) ... [2022-07-14 00:46:24,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:46:24,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:46:26,114 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-14 00:46:26,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:46:26,182 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:46:26,359 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: reg = reg & 4043309055U [8018] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 00:46:26,366 INFO L158 Benchmark]: Toolchain (without parser) took 2227.85ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 50.8MB in the beginning and 95.5MB in the end (delta: -44.7MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. [2022-07-14 00:46:26,367 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory was 81.2MB in the beginning and 81.2MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:46:26,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2225.30ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 50.6MB in the beginning and 95.5MB in the end (delta: -44.9MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. [2022-07-14 00:46:26,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory was 81.2MB in the beginning and 81.2MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2225.30ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 50.6MB in the beginning and 95.5MB in the end (delta: -44.9MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018]: 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:46:27,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:46:27,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:46:28,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:46:28,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:46:28,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:46:28,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:46:28,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:46:28,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:46:28,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:46:28,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:46:28,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:46:28,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:46:28,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:46:28,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:46:28,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:46:28,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:46:28,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:46:28,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:46:28,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:46:28,053 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:46:28,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:46:28,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:46:28,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:46:28,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:46:28,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:46:28,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:46:28,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:46:28,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:46:28,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:46:28,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:46:28,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:46:28,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:46:28,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:46:28,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:46:28,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:46:28,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:46:28,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:46:28,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:46:28,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:46:28,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:46:28,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:46:28,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:46:28,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:46:28,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:46:28,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:46:28,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:46:28,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:46:28,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:46:28,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:46:28,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:46:28,090 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:46:28,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:46:28,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:46:28,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:46:28,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:46:28,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:46:28,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:46:28,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:46:28,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:46:28,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:46:28,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:46:28,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:46:28,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:46:28,093 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:46:28,093 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:46:28,093 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:46:28,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:46:28,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:46:28,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:46:28,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-14 00:46:28,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:46:28,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:46:28,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:46:28,437 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:46:28,438 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:46:28,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:46:28,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c2465f9/a286a6a1a9aa4a49a4bc83aeb8a998f9/FLAGb4f5f618f [2022-07-14 00:46:29,233 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:46:29,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:46:29,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c2465f9/a286a6a1a9aa4a49a4bc83aeb8a998f9/FLAGb4f5f618f [2022-07-14 00:46:29,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c2465f9/a286a6a1a9aa4a49a4bc83aeb8a998f9 [2022-07-14 00:46:29,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:46:29,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:46:29,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:46:29,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:46:29,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:46:29,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:46:29" (1/1) ... [2022-07-14 00:46:29,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab25036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:29, skipping insertion in model container [2022-07-14 00:46:29,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:46:29" (1/1) ... [2022-07-14 00:46:29,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:46:29,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:46:32,279 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-14 00:46:32,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:46:32,383 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:46:32,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:46:32,683 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-14 00:46:32,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:46:32,708 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:46:32,969 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-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-14 00:46:32,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:46:33,220 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:46:33,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33 WrapperNode [2022-07-14 00:46:33,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:46:33,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:46:33,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:46:33,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:46:33,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,536 INFO L137 Inliner]: procedures = 396, calls = 2295, calls flagged for inlining = 189, calls inlined = 143, statements flattened = 4429 [2022-07-14 00:46:33,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:46:33,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:46:33,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:46:33,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:46:33,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:46:33,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:46:33,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:46:33,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:46:33,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (1/1) ... [2022-07-14 00:46:33,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:46:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:46:33,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:46:33,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:46:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-14 00:46:33,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-14 00:46:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-14 00:46:33,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-14 00:46:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-14 00:46:33,786 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-14 00:46:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 00:46:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 00:46:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-07-14 00:46:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-07-14 00:46:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 00:46:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 00:46:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-07-14 00:46:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-07-14 00:46:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-07-14 00:46:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-07-14 00:46:33,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:46:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:46:33,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:46:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:46:33,788 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-07-14 00:46:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-07-14 00:46:33,788 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-07-14 00:46:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-07-14 00:46:33,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 00:46:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 00:46:33,789 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 00:46:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 00:46:33,789 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 00:46:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 00:46:33,790 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-07-14 00:46:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-07-14 00:46:33,790 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:46:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:46:33,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 00:46:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 00:46:33,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unmap_page_2 [2022-07-14 00:46:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unmap_page_2 [2022-07-14 00:46:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 00:46:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 00:46:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 00:46:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 00:46:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:46:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 00:46:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 00:46:33,792 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-07-14 00:46:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-07-14 00:46:33,792 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-14 00:46:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-14 00:46:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:46:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:46:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:46:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:46:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:46:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-07-14 00:46:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-07-14 00:46:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-14 00:46:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-14 00:46:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-14 00:46:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-14 00:46:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-07-14 00:46:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-07-14 00:46:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_macaddr [2022-07-14 00:46:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_macaddr [2022-07-14 00:46:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:46:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:46:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:46:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:46:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:46:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:46:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-07-14 00:46:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-07-14 00:46:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:46:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:46:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-14 00:46:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-14 00:46:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 00:46:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 00:46:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_features [2022-07-14 00:46:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_features [2022-07-14 00:46:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 00:46:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 00:46:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-07-14 00:46:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-07-14 00:46:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-14 00:46:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-14 00:46:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-07-14 00:46:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-07-14 00:46:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-07-14 00:46:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-07-14 00:46:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-14 00:46:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-14 00:46:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 00:46:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 00:46:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:46:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2022-07-14 00:46:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2022-07-14 00:46:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-07-14 00:46:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-07-14 00:46:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:46:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 00:46:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 00:46:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:46:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-14 00:46:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-14 00:46:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:46:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:46:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:46:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-07-14 00:46:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-07-14 00:46:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-14 00:46:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-14 00:46:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:46:33,805 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:46:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-14 00:46:33,805 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-14 00:46:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:46:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:46:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:46:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-07-14 00:46:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-07-14 00:46:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:46:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:46:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure jme_change_mtu [2022-07-14 00:46:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_change_mtu [2022-07-14 00:46:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-14 00:46:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-14 00:46:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-14 00:46:33,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-14 00:46:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:46:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-14 00:46:33,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-14 00:46:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-07-14 00:46:33,812 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-07-14 00:46:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-07-14 00:46:33,812 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-07-14 00:46:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 00:46:33,812 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 00:46:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-07-14 00:46:33,813 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-07-14 00:46:33,813 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:46:33,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:46:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure jme_ioctl [2022-07-14 00:46:33,814 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_ioctl [2022-07-14 00:46:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-07-14 00:46:33,814 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-07-14 00:46:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-07-14 00:46:33,814 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-07-14 00:46:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-07-14 00:46:33,814 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-07-14 00:46:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 00:46:33,814 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 00:46:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable_nosync [2022-07-14 00:46:33,815 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable_nosync [2022-07-14 00:46:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:46:33,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:46:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-07-14 00:46:33,815 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-07-14 00:46:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-07-14 00:46:33,815 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-07-14 00:46:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-07-14 00:46:33,815 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-07-14 00:46:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-14 00:46:33,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-14 00:46:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:46:33,816 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:46:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:46:33,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:46:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:46:33,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:46:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 00:46:33,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 00:46:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-07-14 00:46:33,817 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-07-14 00:46:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 00:46:33,817 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 00:46:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:46:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 00:46:33,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 00:46:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:46:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-07-14 00:46:33,817 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-07-14 00:46:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-07-14 00:46:33,818 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-07-14 00:46:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-07-14 00:46:33,818 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-07-14 00:46:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-07-14 00:46:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-14 00:46:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-14 00:46:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:46:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:46:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-07-14 00:46:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-07-14 00:46:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-14 00:46:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-14 00:46:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-07-14 00:46:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-07-14 00:46:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure jme_vlan_rx_register [2022-07-14 00:46:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_vlan_rx_register [2022-07-14 00:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-07-14 00:46:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-07-14 00:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 00:46:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 00:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:46:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-07-14 00:46:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-07-14 00:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-07-14 00:46:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-07-14 00:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-07-14 00:46:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-07-14 00:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:46:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-14 00:46:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-14 00:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-07-14 00:46:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-07-14 00:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:46:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:46:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-07-14 00:46:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-07-14 00:46:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:46:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:46:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:46:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-07-14 00:46:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-07-14 00:46:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-07-14 00:46:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-07-14 00:46:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:46:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:46:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 00:46:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 00:46:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-07-14 00:46:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-07-14 00:46:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 00:46:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 00:46:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-07-14 00:46:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-07-14 00:46:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 00:46:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 00:46:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-14 00:46:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-14 00:46:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-07-14 00:46:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-07-14 00:46:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-07-14 00:46:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-07-14 00:46:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-07-14 00:46:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-07-14 00:46:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-07-14 00:46:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-07-14 00:46:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fix_features [2022-07-14 00:46:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fix_features [2022-07-14 00:46:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-07-14 00:46:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-07-14 00:46:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-07-14 00:46:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-07-14 00:46:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-14 00:46:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-14 00:46:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-14 00:46:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-14 00:46:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_map_page_1 [2022-07-14 00:46:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_map_page_1 [2022-07-14 00:46:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-07-14 00:46:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-07-14 00:46:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-14 00:46:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-14 00:46:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-07-14 00:46:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-07-14 00:46:34,517 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:46:34,520 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:46:41,529 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:47:18,839 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:47:18,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:47:18,853 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-14 00:47:18,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:47:18 BoogieIcfgContainer [2022-07-14 00:47:18,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:47:18,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:47:18,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:47:18,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:47:18,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:46:29" (1/3) ... [2022-07-14 00:47:18,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a783aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:47:18, skipping insertion in model container [2022-07-14 00:47:18,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:46:33" (2/3) ... [2022-07-14 00:47:18,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a783aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:47:18, skipping insertion in model container [2022-07-14 00:47:18,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:47:18" (3/3) ... [2022-07-14 00:47:18,861 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:47:18,871 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:47:18,871 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:47:18,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:47:18,938 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@65f574d3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3057b775 [2022-07-14 00:47:18,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:47:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 1938 states, 1269 states have (on average 1.3152088258471237) internal successors, (1669), 1316 states have internal predecessors, (1669), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) [2022-07-14 00:47:18,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-14 00:47:18,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:18,970 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-14 00:47:18,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:18,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash 914134315, now seen corresponding path program 1 times [2022-07-14 00:47:18,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:18,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430036928] [2022-07-14 00:47:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:18,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:18,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:18,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:18,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:47:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:20,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:47:20,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-14 00:47:20,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:20,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:20,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430036928] [2022-07-14 00:47:20,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430036928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:20,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:20,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:47:20,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905145763] [2022-07-14 00:47:20,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:20,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:47:20,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:47:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:47:20,858 INFO L87 Difference]: Start difference. First operand has 1938 states, 1269 states have (on average 1.3152088258471237) internal successors, (1669), 1316 states have internal predecessors, (1669), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 00:47:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:21,927 INFO L93 Difference]: Finished difference Result 3865 states and 5546 transitions. [2022-07-14 00:47:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:47:21,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 232 [2022-07-14 00:47:21,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:21,960 INFO L225 Difference]: With dead ends: 3865 [2022-07-14 00:47:21,960 INFO L226 Difference]: Without dead ends: 1911 [2022-07-14 00:47:21,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:47:21,980 INFO L413 NwaCegarLoop]: 2716 mSDtfsCounter, 6 mSDsluCounter, 10844 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:21,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13560 Invalid, 60 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 00:47:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2022-07-14 00:47:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1911. [2022-07-14 00:47:22,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1250 states have (on average 1.3064) internal successors, (1633), 1286 states have internal predecessors, (1633), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-07-14 00:47:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2702 transitions. [2022-07-14 00:47:22,176 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2702 transitions. Word has length 232 [2022-07-14 00:47:22,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:22,181 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2702 transitions. [2022-07-14 00:47:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-14 00:47:22,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2702 transitions. [2022-07-14 00:47:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-14 00:47:22,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:22,189 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-14 00:47:22,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 00:47:22,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:22,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:22,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash -772722983, now seen corresponding path program 1 times [2022-07-14 00:47:22,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:22,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21760710] [2022-07-14 00:47:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:22,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:22,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:22,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:22,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:47:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:23,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 00:47:23,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-14 00:47:24,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:47:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-14 00:47:25,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:25,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21760710] [2022-07-14 00:47:25,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21760710] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:47:25,902 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:47:25,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-14 00:47:25,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580339197] [2022-07-14 00:47:25,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:47:25,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:47:25,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:25,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:47:25,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:47:25,906 INFO L87 Difference]: Start difference. First operand 1911 states and 2702 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-14 00:47:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:27,121 INFO L93 Difference]: Finished difference Result 3804 states and 5381 transitions. [2022-07-14 00:47:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:47:27,122 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 237 [2022-07-14 00:47:27,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:27,139 INFO L225 Difference]: With dead ends: 3804 [2022-07-14 00:47:27,140 INFO L226 Difference]: Without dead ends: 1912 [2022-07-14 00:47:27,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:47:27,153 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 9 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16131 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:27,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16131 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:47:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-07-14 00:47:27,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2022-07-14 00:47:27,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1251 states have (on average 1.3061550759392486) internal successors, (1634), 1287 states have internal predecessors, (1634), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-07-14 00:47:27,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2703 transitions. [2022-07-14 00:47:27,238 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2703 transitions. Word has length 237 [2022-07-14 00:47:27,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:27,239 INFO L495 AbstractCegarLoop]: Abstraction has 1912 states and 2703 transitions. [2022-07-14 00:47:27,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-14 00:47:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2703 transitions. [2022-07-14 00:47:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-14 00:47:27,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:27,242 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-07-14 00:47:27,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:27,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:27,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:27,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1055728149, now seen corresponding path program 2 times [2022-07-14 00:47:27,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:27,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110553488] [2022-07-14 00:47:27,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:47:27,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:27,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:27,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:27,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:47:28,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:47:28,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:47:28,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:47:28,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-07-14 00:47:28,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:28,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:28,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110553488] [2022-07-14 00:47:28,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110553488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:28,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:28,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:47:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144402623] [2022-07-14 00:47:28,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:28,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:47:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:28,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:47:28,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:28,342 INFO L87 Difference]: Start difference. First operand 1912 states and 2703 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-14 00:47:28,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:28,669 INFO L93 Difference]: Finished difference Result 5629 states and 7962 transitions. [2022-07-14 00:47:28,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:47:28,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 242 [2022-07-14 00:47:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:28,691 INFO L225 Difference]: With dead ends: 5629 [2022-07-14 00:47:28,692 INFO L226 Difference]: Without dead ends: 3755 [2022-07-14 00:47:28,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:28,703 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 2605 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:28,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5905 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:47:28,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-14 00:47:28,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3752. [2022-07-14 00:47:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 2459 states have (on average 1.3094753965026433) internal successors, (3220), 2529 states have internal predecessors, (3220), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-14 00:47:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5307 transitions. [2022-07-14 00:47:28,842 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5307 transitions. Word has length 242 [2022-07-14 00:47:28,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:28,845 INFO L495 AbstractCegarLoop]: Abstraction has 3752 states and 5307 transitions. [2022-07-14 00:47:28,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-14 00:47:28,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5307 transitions. [2022-07-14 00:47:28,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-14 00:47:28,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:28,852 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-14 00:47:28,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:29,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:29,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1522031199, now seen corresponding path program 1 times [2022-07-14 00:47:29,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:29,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925233526] [2022-07-14 00:47:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:29,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:29,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:29,073 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:29,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:47:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:30,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:47:30,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-07-14 00:47:30,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:47:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-07-14 00:47:33,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:33,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925233526] [2022-07-14 00:47:33,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925233526] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:47:33,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:47:33,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-14 00:47:33,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229130908] [2022-07-14 00:47:33,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:47:33,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:47:33,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:33,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:47:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:47:33,033 INFO L87 Difference]: Start difference. First operand 3752 states and 5307 transitions. Second operand has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 00:47:34,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:34,324 INFO L93 Difference]: Finished difference Result 7489 states and 10595 transitions. [2022-07-14 00:47:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:47:34,325 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 262 [2022-07-14 00:47:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:34,350 INFO L225 Difference]: With dead ends: 7489 [2022-07-14 00:47:34,350 INFO L226 Difference]: Without dead ends: 3754 [2022-07-14 00:47:34,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:47:34,368 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 10 mSDsluCounter, 16127 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 18820 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:34,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 00:47:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-07-14 00:47:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2022-07-14 00:47:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2461 states have (on average 1.3092238927265338) internal successors, (3222), 2531 states have internal predecessors, (3222), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-14 00:47:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5309 transitions. [2022-07-14 00:47:34,524 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5309 transitions. Word has length 262 [2022-07-14 00:47:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:34,525 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5309 transitions. [2022-07-14 00:47:34,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 00:47:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5309 transitions. [2022-07-14 00:47:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-14 00:47:34,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:34,530 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-07-14 00:47:34,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:34,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:34,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1092106703, now seen corresponding path program 2 times [2022-07-14 00:47:34,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:34,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601872137] [2022-07-14 00:47:34,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:47:34,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:34,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:34,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:34,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:47:46,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 00:47:46,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:47:46,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:47:46,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-14 00:47:48,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:48,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:48,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601872137] [2022-07-14 00:47:48,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601872137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:48,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:47:48,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:47:48,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363093104] [2022-07-14 00:47:48,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:48,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:47:48,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:48,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:47:48,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:48,121 INFO L87 Difference]: Start difference. First operand 3754 states and 5309 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:47:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:48,307 INFO L93 Difference]: Finished difference Result 3756 states and 5310 transitions. [2022-07-14 00:47:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:47:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 267 [2022-07-14 00:47:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:48,327 INFO L225 Difference]: With dead ends: 3756 [2022-07-14 00:47:48,327 INFO L226 Difference]: Without dead ends: 3753 [2022-07-14 00:47:48,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:47:48,330 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2641 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 2698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:47:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-14 00:47:48,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-14 00:47:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2461 states have (on average 1.3088175538399025) internal successors, (3221), 2530 states have internal predecessors, (3221), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-14 00:47:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5307 transitions. [2022-07-14 00:47:48,477 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5307 transitions. Word has length 267 [2022-07-14 00:47:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:48,478 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5307 transitions. [2022-07-14 00:47:48,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:47:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5307 transitions. [2022-07-14 00:47:48,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-14 00:47:48,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:48,485 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:47:48,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:48,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:48,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:48,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:48,700 INFO L85 PathProgramCache]: Analyzing trace with hash -505287589, now seen corresponding path program 1 times [2022-07-14 00:47:48,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:48,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107818350] [2022-07-14 00:47:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:48,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:48,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:48,703 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:48,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:47:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:49,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 00:47:49,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 236 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-07-14 00:47:50,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:47:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-14 00:47:53,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:47:53,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107818350] [2022-07-14 00:47:53,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107818350] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:47:53,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:47:53,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-14 00:47:53,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368506017] [2022-07-14 00:47:53,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:47:53,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 00:47:53,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:47:53,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 00:47:53,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:47:53,222 INFO L87 Difference]: Start difference. First operand 3753 states and 5307 transitions. Second operand has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 00:47:54,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:54,981 INFO L93 Difference]: Finished difference Result 7491 states and 10595 transitions. [2022-07-14 00:47:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:47:54,982 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 268 [2022-07-14 00:47:54,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:55,007 INFO L225 Difference]: With dead ends: 7491 [2022-07-14 00:47:55,008 INFO L226 Difference]: Without dead ends: 3755 [2022-07-14 00:47:55,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:47:55,027 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 11 mSDsluCounter, 21488 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24179 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:55,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24179 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-14 00:47:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-14 00:47:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3755. [2022-07-14 00:47:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 2463 states have (on average 1.3085667884693464) internal successors, (3223), 2532 states have internal predecessors, (3223), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-14 00:47:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5309 transitions. [2022-07-14 00:47:55,186 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5309 transitions. Word has length 268 [2022-07-14 00:47:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:55,187 INFO L495 AbstractCegarLoop]: Abstraction has 3755 states and 5309 transitions. [2022-07-14 00:47:55,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 00:47:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5309 transitions. [2022-07-14 00:47:55,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-14 00:47:55,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:55,192 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:47:55,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:55,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:47:55,416 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:55,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:55,416 INFO L85 PathProgramCache]: Analyzing trace with hash -328377847, now seen corresponding path program 2 times [2022-07-14 00:47:55,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:47:55,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030651466] [2022-07-14 00:47:55,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:47:55,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:47:55,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:47:55,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:47:55,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:48:08,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 00:48:08,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:48:08,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:48:08,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-07-14 00:48:09,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:09,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:09,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030651466] [2022-07-14 00:48:09,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030651466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:09,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:09,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:48:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404532928] [2022-07-14 00:48:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:09,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:48:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:48:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:09,997 INFO L87 Difference]: Start difference. First operand 3755 states and 5309 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:48:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:10,353 INFO L93 Difference]: Finished difference Result 11173 states and 15823 transitions. [2022-07-14 00:48:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:48:10,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 273 [2022-07-14 00:48:10,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:10,423 INFO L225 Difference]: With dead ends: 11173 [2022-07-14 00:48:10,423 INFO L226 Difference]: Without dead ends: 7450 [2022-07-14 00:48:10,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:10,446 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 2628 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:10,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 5949 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:48:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7450 states. [2022-07-14 00:48:10,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7445. [2022-07-14 00:48:10,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 4886 states have (on average 1.3100695865738845) internal successors, (6401), 5023 states have internal predecessors, (6401), 2067 states have call successors, (2067), 493 states have call predecessors, (2067), 491 states have return successors, (2070), 2024 states have call predecessors, (2070), 2064 states have call successors, (2070) [2022-07-14 00:48:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10538 transitions. [2022-07-14 00:48:10,743 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10538 transitions. Word has length 273 [2022-07-14 00:48:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:10,744 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10538 transitions. [2022-07-14 00:48:10,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:48:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10538 transitions. [2022-07-14 00:48:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-07-14 00:48:10,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:10,764 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:48:10,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:10,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:48:10,988 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:10,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:10,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1796727306, now seen corresponding path program 1 times [2022-07-14 00:48:10,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:48:10,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591535453] [2022-07-14 00:48:10,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:10,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:48:10,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:48:10,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:48:10,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:48:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:13,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:48:13,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-07-14 00:48:13,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:13,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:13,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591535453] [2022-07-14 00:48:13,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591535453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:13,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:13,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:48:13,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570295430] [2022-07-14 00:48:13,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:13,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:48:13,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:13,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:48:13,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:13,962 INFO L87 Difference]: Start difference. First operand 7445 states and 10538 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-14 00:48:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:15,126 INFO L93 Difference]: Finished difference Result 19843 states and 28038 transitions. [2022-07-14 00:48:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:48:15,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 476 [2022-07-14 00:48:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:15,238 INFO L225 Difference]: With dead ends: 19843 [2022-07-14 00:48:15,238 INFO L226 Difference]: Without dead ends: 12436 [2022-07-14 00:48:15,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:15,279 INFO L413 NwaCegarLoop]: 3053 mSDtfsCounter, 1838 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:15,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 5584 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 00:48:15,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12436 states. [2022-07-14 00:48:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12436 to 12403. [2022-07-14 00:48:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12403 states, 8154 states have (on average 1.3132205052734853) internal successors, (10708), 8395 states have internal predecessors, (10708), 3403 states have call successors, (3403), 847 states have call predecessors, (3403), 845 states have return successors, (3406), 3324 states have call predecessors, (3406), 3400 states have call successors, (3406) [2022-07-14 00:48:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 17517 transitions. [2022-07-14 00:48:15,852 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 17517 transitions. Word has length 476 [2022-07-14 00:48:15,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:15,855 INFO L495 AbstractCegarLoop]: Abstraction has 12403 states and 17517 transitions. [2022-07-14 00:48:15,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-14 00:48:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 17517 transitions. [2022-07-14 00:48:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2022-07-14 00:48:15,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:15,887 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:48:15,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:16,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:48:16,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:16,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1792837774, now seen corresponding path program 1 times [2022-07-14 00:48:16,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:48:16,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259040790] [2022-07-14 00:48:16,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:16,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:48:16,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:48:16,112 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:48:16,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:48:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:20,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 4881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:48:20,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12457 trivial. 0 not checked. [2022-07-14 00:48:20,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:20,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:20,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259040790] [2022-07-14 00:48:20,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259040790] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:20,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:20,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:48:20,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651376673] [2022-07-14 00:48:20,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:20,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:48:20,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:20,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:48:20,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:20,237 INFO L87 Difference]: Start difference. First operand 12403 states and 17517 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-14 00:48:21,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:21,311 INFO L93 Difference]: Finished difference Result 35147 states and 49473 transitions. [2022-07-14 00:48:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:48:21,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 1258 [2022-07-14 00:48:21,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:21,463 INFO L225 Difference]: With dead ends: 35147 [2022-07-14 00:48:21,463 INFO L226 Difference]: Without dead ends: 22782 [2022-07-14 00:48:21,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:21,507 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 2411 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:21,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 5938 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 00:48:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22782 states. [2022-07-14 00:48:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22782 to 22769. [2022-07-14 00:48:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22769 states, 14930 states have (on average 1.302746148693905) internal successors, (19450), 15383 states have internal predecessors, (19450), 6265 states have call successors, (6265), 1575 states have call predecessors, (6265), 1573 states have return successors, (6274), 6110 states have call predecessors, (6274), 6262 states have call successors, (6274) [2022-07-14 00:48:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22769 states to 22769 states and 31989 transitions. [2022-07-14 00:48:22,414 INFO L78 Accepts]: Start accepts. Automaton has 22769 states and 31989 transitions. Word has length 1258 [2022-07-14 00:48:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:22,415 INFO L495 AbstractCegarLoop]: Abstraction has 22769 states and 31989 transitions. [2022-07-14 00:48:22,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-14 00:48:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 22769 states and 31989 transitions. [2022-07-14 00:48:22,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2022-07-14 00:48:22,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:22,469 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:48:22,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:22,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:48:22,688 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:22,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -346518197, now seen corresponding path program 1 times [2022-07-14 00:48:22,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:48:22,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103077558] [2022-07-14 00:48:22,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:22,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:48:22,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:48:22,693 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:48:22,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:48:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:27,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 5308 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:48:27,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 12891 trivial. 0 not checked. [2022-07-14 00:48:29,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:29,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:29,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103077558] [2022-07-14 00:48:29,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103077558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:29,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:29,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:48:29,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151897620] [2022-07-14 00:48:29,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:29,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:48:29,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:29,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:48:29,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:29,633 INFO L87 Difference]: Start difference. First operand 22769 states and 31989 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-07-14 00:48:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:31,176 INFO L93 Difference]: Finished difference Result 56195 states and 79053 transitions. [2022-07-14 00:48:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:48:31,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) Word has length 1402 [2022-07-14 00:48:31,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:31,341 INFO L225 Difference]: With dead ends: 56195 [2022-07-14 00:48:31,341 INFO L226 Difference]: Without dead ends: 33474 [2022-07-14 00:48:31,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1401 GetRequests, 1400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:31,438 INFO L413 NwaCegarLoop]: 5042 mSDtfsCounter, 2405 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 7651 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:31,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 7651 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:48:31,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33474 states. [2022-07-14 00:48:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33474 to 33461. [2022-07-14 00:48:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33461 states, 22036 states have (on average 1.3015973860954801) internal successors, (28682), 22701 states have internal predecessors, (28682), 9125 states have call successors, (9125), 2301 states have call predecessors, (9125), 2299 states have return successors, (9140), 8894 states have call predecessors, (9140), 9122 states have call successors, (9140) [2022-07-14 00:48:32,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 46947 transitions. [2022-07-14 00:48:32,857 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 46947 transitions. Word has length 1402 [2022-07-14 00:48:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:32,858 INFO L495 AbstractCegarLoop]: Abstraction has 33461 states and 46947 transitions. [2022-07-14 00:48:32,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-07-14 00:48:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 46947 transitions. [2022-07-14 00:48:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2022-07-14 00:48:32,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:32,908 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:48:33,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:33,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:48:33,121 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:33,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:33,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1316402270, now seen corresponding path program 1 times [2022-07-14 00:48:33,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:48:33,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178231591] [2022-07-14 00:48:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:33,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:48:33,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:48:33,125 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:48:33,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:48:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:37,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 5352 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 00:48:37,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 13988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13988 trivial. 0 not checked. [2022-07-14 00:48:38,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:38,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:38,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178231591] [2022-07-14 00:48:38,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178231591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:38,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:38,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:48:38,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548372775] [2022-07-14 00:48:38,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:38,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:48:38,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:38,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:48:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:48:38,668 INFO L87 Difference]: Start difference. First operand 33461 states and 46947 transitions. Second operand has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-07-14 00:48:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:41,798 INFO L93 Difference]: Finished difference Result 67034 states and 94259 transitions. [2022-07-14 00:48:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:48:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) Word has length 1425 [2022-07-14 00:48:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:41,990 INFO L225 Difference]: With dead ends: 67034 [2022-07-14 00:48:41,991 INFO L226 Difference]: Without dead ends: 33621 [2022-07-14 00:48:42,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1418 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:48:42,273 INFO L413 NwaCegarLoop]: 2697 mSDtfsCounter, 12 mSDsluCounter, 16123 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18820 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:42,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18820 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-14 00:48:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33621 states. [2022-07-14 00:48:43,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33621 to 33509. [2022-07-14 00:48:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33509 states, 22068 states have (on average 1.3011600507522205) internal successors, (28714), 22717 states have internal predecessors, (28714), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-14 00:48:43,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33509 states to 33509 states and 47011 transitions. [2022-07-14 00:48:43,508 INFO L78 Accepts]: Start accepts. Automaton has 33509 states and 47011 transitions. Word has length 1425 [2022-07-14 00:48:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:43,509 INFO L495 AbstractCegarLoop]: Abstraction has 33509 states and 47011 transitions. [2022-07-14 00:48:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-07-14 00:48:43,510 INFO L276 IsEmpty]: Start isEmpty. Operand 33509 states and 47011 transitions. [2022-07-14 00:48:43,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2022-07-14 00:48:43,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:43,711 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:48:43,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:43,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:48:43,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:43,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:43,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1415645786, now seen corresponding path program 1 times [2022-07-14 00:48:43,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:48:43,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436752056] [2022-07-14 00:48:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:43,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:48:43,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:48:43,936 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:48:43,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:48:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:48,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:48:48,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 2191 proven. 0 refuted. 0 times theorem prover too weak. 11796 trivial. 0 not checked. [2022-07-14 00:48:49,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:49,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:49,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436752056] [2022-07-14 00:48:49,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436752056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:49,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:49,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:48:49,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345371150] [2022-07-14 00:48:49,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:49,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:48:49,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:49,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:48:49,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:49,009 INFO L87 Difference]: Start difference. First operand 33509 states and 47011 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-14 00:48:49,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:49,804 INFO L93 Difference]: Finished difference Result 67098 states and 94227 transitions. [2022-07-14 00:48:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:48:49,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1428 [2022-07-14 00:48:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:49,965 INFO L225 Difference]: With dead ends: 67098 [2022-07-14 00:48:49,965 INFO L226 Difference]: Without dead ends: 33637 [2022-07-14 00:48:50,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:50,100 INFO L413 NwaCegarLoop]: 2699 mSDtfsCounter, 3 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:50,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5392 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:48:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33637 states. [2022-07-14 00:48:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33637 to 33541. [2022-07-14 00:48:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33541 states, 22100 states have (on average 1.3014479638009049) internal successors, (28762), 22749 states have internal predecessors, (28762), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-14 00:48:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33541 states to 33541 states and 47059 transitions. [2022-07-14 00:48:51,513 INFO L78 Accepts]: Start accepts. Automaton has 33541 states and 47059 transitions. Word has length 1428 [2022-07-14 00:48:51,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:51,514 INFO L495 AbstractCegarLoop]: Abstraction has 33541 states and 47059 transitions. [2022-07-14 00:48:51,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-14 00:48:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 33541 states and 47059 transitions. [2022-07-14 00:48:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-14 00:48:51,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:51,556 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:48:51,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:51,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:48:51,776 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:51,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:51,777 INFO L85 PathProgramCache]: Analyzing trace with hash 201680618, now seen corresponding path program 1 times [2022-07-14 00:48:51,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:48:51,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328303388] [2022-07-14 00:48:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:51,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:48:51,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:48:51,782 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:48:51,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:48:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:57,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:48:57,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 3430 proven. 0 refuted. 0 times theorem prover too weak. 10556 trivial. 0 not checked. [2022-07-14 00:48:57,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:48:57,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:48:57,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328303388] [2022-07-14 00:48:57,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328303388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:48:57,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:48:57,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:48:57,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273297031] [2022-07-14 00:48:57,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:48:57,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:48:57,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:48:57,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:48:57,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:57,635 INFO L87 Difference]: Start difference. First operand 33541 states and 47059 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-14 00:48:58,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:58,533 INFO L93 Difference]: Finished difference Result 67162 states and 94323 transitions. [2022-07-14 00:48:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:48:58,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1427 [2022-07-14 00:48:58,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:58,674 INFO L225 Difference]: With dead ends: 67162 [2022-07-14 00:48:58,674 INFO L226 Difference]: Without dead ends: 33669 [2022-07-14 00:48:58,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:48:58,773 INFO L413 NwaCegarLoop]: 2701 mSDtfsCounter, 3 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:58,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5395 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:48:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33669 states. [2022-07-14 00:48:59,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33669 to 33573. [2022-07-14 00:48:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33573 states, 22132 states have (on average 1.301735044279776) internal successors, (28810), 22781 states have internal predecessors, (28810), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-14 00:48:59,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33573 states to 33573 states and 47107 transitions. [2022-07-14 00:48:59,981 INFO L78 Accepts]: Start accepts. Automaton has 33573 states and 47107 transitions. Word has length 1427 [2022-07-14 00:48:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:59,982 INFO L495 AbstractCegarLoop]: Abstraction has 33573 states and 47107 transitions. [2022-07-14 00:48:59,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-14 00:48:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 33573 states and 47107 transitions. [2022-07-14 00:49:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-14 00:49:00,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:00,019 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:49:00,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-14 00:49:00,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:49:00,236 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:00,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:00,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2036392852, now seen corresponding path program 1 times [2022-07-14 00:49:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:49:00,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120818206] [2022-07-14 00:49:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:00,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:49:00,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:49:00,244 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:49:00,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 00:49:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:09,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:49:09,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:49:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 13294 trivial. 0 not checked. [2022-07-14 00:49:10,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:49:10,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:49:10,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120818206] [2022-07-14 00:49:10,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120818206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:10,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:10,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:49:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958204197] [2022-07-14 00:49:10,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:49:10,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:49:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:49:10,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:49:10,134 INFO L87 Difference]: Start difference. First operand 33573 states and 47107 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-14 00:49:12,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:49:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:12,982 INFO L93 Difference]: Finished difference Result 67362 states and 94639 transitions. [2022-07-14 00:49:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:49:12,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 1427 [2022-07-14 00:49:12,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:13,100 INFO L225 Difference]: With dead ends: 67362 [2022-07-14 00:49:13,100 INFO L226 Difference]: Without dead ends: 33837 [2022-07-14 00:49:13,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:49:13,183 INFO L413 NwaCegarLoop]: 2700 mSDtfsCounter, 7 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:13,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5393 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 00:49:13,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33837 states. [2022-07-14 00:49:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33837 to 33597. [2022-07-14 00:49:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33597 states, 22156 states have (on average 1.3014081964253474) internal successors, (28834), 22805 states have internal predecessors, (28834), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-14 00:49:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33597 states to 33597 states and 47131 transitions. [2022-07-14 00:49:14,436 INFO L78 Accepts]: Start accepts. Automaton has 33597 states and 47131 transitions. Word has length 1427 [2022-07-14 00:49:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:14,437 INFO L495 AbstractCegarLoop]: Abstraction has 33597 states and 47131 transitions. [2022-07-14 00:49:14,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-14 00:49:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 33597 states and 47131 transitions. [2022-07-14 00:49:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2022-07-14 00:49:14,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:14,466 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 47, 47, 31, 31, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:49:14,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-14 00:49:14,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:49:14,680 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1165066850, now seen corresponding path program 1 times [2022-07-14 00:49:14,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:49:14,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721101178] [2022-07-14 00:49:14,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:14,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:49:14,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:49:14,684 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:49:14,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 00:49:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:24,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 5512 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:49:24,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:49:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 15462 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 14713 trivial. 0 not checked. [2022-07-14 00:49:24,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:49:24,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:49:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721101178] [2022-07-14 00:49:24,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721101178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:49:24,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:49:24,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:49:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240760928] [2022-07-14 00:49:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:49:24,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:49:24,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:49:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:49:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:49:24,748 INFO L87 Difference]: Start difference. First operand 33597 states and 47131 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-07-14 00:49:25,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:25,569 INFO L93 Difference]: Finished difference Result 67266 states and 94471 transitions. [2022-07-14 00:49:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:49:25,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 1479 [2022-07-14 00:49:25,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:25,683 INFO L225 Difference]: With dead ends: 67266 [2022-07-14 00:49:25,683 INFO L226 Difference]: Without dead ends: 33717 [2022-07-14 00:49:25,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1477 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:49:25,773 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5390 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:25,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:49:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33717 states. [2022-07-14 00:49:26,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33717 to 33621. [2022-07-14 00:49:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33621 states, 22180 states have (on average 1.3010820559062217) internal successors, (28858), 22829 states have internal predecessors, (28858), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-14 00:49:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33621 states to 33621 states and 47155 transitions. [2022-07-14 00:49:26,932 INFO L78 Accepts]: Start accepts. Automaton has 33621 states and 47155 transitions. Word has length 1479 [2022-07-14 00:49:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:26,933 INFO L495 AbstractCegarLoop]: Abstraction has 33621 states and 47155 transitions. [2022-07-14 00:49:26,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-07-14 00:49:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 33621 states and 47155 transitions. [2022-07-14 00:49:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-07-14 00:49:26,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:26,964 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 49, 49, 33, 33, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:49:27,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-14 00:49:27,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:49:27,188 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:27,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:27,189 INFO L85 PathProgramCache]: Analyzing trace with hash -710622717, now seen corresponding path program 1 times [2022-07-14 00:49:27,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:49:27,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770252690] [2022-07-14 00:49:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:27,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:49:27,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:49:27,193 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:49:27,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 00:49:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:37,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:49:37,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:49:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 805 proven. 1 refuted. 0 times theorem prover too weak. 16243 trivial. 0 not checked. [2022-07-14 00:49:37,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:49:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-07-14 00:49:39,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:49:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770252690] [2022-07-14 00:49:39,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770252690] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:49:39,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:49:39,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 00:49:39,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144449732] [2022-07-14 00:49:39,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:49:39,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:49:39,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:49:39,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:49:39,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:49:39,512 INFO L87 Difference]: Start difference. First operand 33621 states and 47155 transitions. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-07-14 00:49:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:49:40,808 INFO L93 Difference]: Finished difference Result 67554 states and 94903 transitions. [2022-07-14 00:49:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:49:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) Word has length 1528 [2022-07-14 00:49:40,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:49:40,938 INFO L225 Difference]: With dead ends: 67554 [2022-07-14 00:49:40,938 INFO L226 Difference]: Without dead ends: 33981 [2022-07-14 00:49:41,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3055 GetRequests, 3050 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:49:41,061 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 10 mSDsluCounter, 5382 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:49:41,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8086 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:49:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2022-07-14 00:49:41,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 33981. [2022-07-14 00:49:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33981 states, 22396 states have (on average 1.2981782461153777) internal successors, (29074), 23045 states have internal predecessors, (29074), 9285 states have call successors, (9285), 2301 states have call predecessors, (9285), 2299 states have return successors, (9300), 9054 states have call predecessors, (9300), 9282 states have call successors, (9300) [2022-07-14 00:49:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33981 states to 33981 states and 47659 transitions. [2022-07-14 00:49:42,367 INFO L78 Accepts]: Start accepts. Automaton has 33981 states and 47659 transitions. Word has length 1528 [2022-07-14 00:49:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:49:42,368 INFO L495 AbstractCegarLoop]: Abstraction has 33981 states and 47659 transitions. [2022-07-14 00:49:42,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-07-14 00:49:42,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33981 states and 47659 transitions. [2022-07-14 00:49:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1675 [2022-07-14 00:49:42,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:49:42,401 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 55, 55, 39, 39, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:49:42,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 00:49:42,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:49:42,604 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:49:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:49:42,605 INFO L85 PathProgramCache]: Analyzing trace with hash -672348468, now seen corresponding path program 1 times [2022-07-14 00:49:42,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:49:42,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492040312] [2022-07-14 00:49:42,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:49:42,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:49:42,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:49:42,610 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:49:42,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 00:49:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:49:54,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 6066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:49:54,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:49:55,228 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 972 proven. 1 refuted. 0 times theorem prover too weak. 21538 trivial. 0 not checked. [2022-07-14 00:49:55,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:49:57,329 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22510 trivial. 0 not checked. [2022-07-14 00:49:57,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:49:57,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492040312] [2022-07-14 00:49:57,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492040312] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:49:57,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:49:57,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 00:49:57,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516707746] [2022-07-14 00:49:57,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:49:57,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:49:57,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:49:57,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:49:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:49:57,333 INFO L87 Difference]: Start difference. First operand 33981 states and 47659 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-07-14 00:49:59,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:50:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:50:00,786 INFO L93 Difference]: Finished difference Result 69858 states and 98143 transitions. [2022-07-14 00:50:00,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:50:00,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 1674 [2022-07-14 00:50:00,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:50:00,947 INFO L225 Difference]: With dead ends: 69858 [2022-07-14 00:50:00,947 INFO L226 Difference]: Without dead ends: 35925 [2022-07-14 00:50:01,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3347 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:50:01,068 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 35 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8108 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:50:01,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 8108 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-14 00:50:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35925 states. [2022-07-14 00:50:02,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35925 to 35925. [2022-07-14 00:50:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35925 states, 23620 states have (on average 1.285774767146486) internal successors, (30370), 24269 states have internal predecessors, (30370), 10005 states have call successors, (10005), 2301 states have call predecessors, (10005), 2299 states have return successors, (10020), 9774 states have call predecessors, (10020), 10002 states have call successors, (10020) [2022-07-14 00:50:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35925 states to 35925 states and 50395 transitions. [2022-07-14 00:50:02,488 INFO L78 Accepts]: Start accepts. Automaton has 35925 states and 50395 transitions. Word has length 1674 [2022-07-14 00:50:02,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:50:02,489 INFO L495 AbstractCegarLoop]: Abstraction has 35925 states and 50395 transitions. [2022-07-14 00:50:02,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-07-14 00:50:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 35925 states and 50395 transitions. [2022-07-14 00:50:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2418 [2022-07-14 00:50:02,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:50:02,548 INFO L195 NwaCegarLoop]: trace histogram [138, 138, 85, 85, 69, 69, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:50:02,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 00:50:02,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:50:02,749 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:50:02,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:50:02,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1455561723, now seen corresponding path program 1 times [2022-07-14 00:50:02,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:50:02,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002958620] [2022-07-14 00:50:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:50:02,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:50:02,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:50:02,755 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:50:02,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 00:50:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:50:27,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 8194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 00:50:27,489 INFO L286 TraceCheckSpWp]: Computing forward predicates...