./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 eb692b52 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-?-eb692b5 [2022-07-20 00:08:01,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:08:01,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:08:01,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:08:01,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:08:01,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:08:01,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:08:01,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:08:01,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:08:01,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:08:01,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:08:01,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:08:01,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:08:01,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:08:01,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:08:01,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:08:01,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:08:01,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:08:01,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:08:01,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:08:01,925 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:08:01,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:08:01,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:08:01,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:08:01,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:08:01,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:08:01,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:08:01,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:08:01,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:08:01,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:08:01,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:08:01,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:08:01,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:08:01,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:08:01,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:08:01,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:08:01,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:08:01,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:08:01,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:08:01,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:08:01,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:08:01,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:08:01,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:08:01,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:08:01,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:08:01,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:08:01,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:08:01,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:08:01,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:08:01,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:08:01,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:08:01,984 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:08:01,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:08:01,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:08:01,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:08:01,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:08:01,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:08:01,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:08:01,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:08:01,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:08:01,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:08:01,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:08:01,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:08:01,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:08:01,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:08:01,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:08:01,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:08:01,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:08:01,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:08:01,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:08:01,990 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:08:01,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:08:01,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:08:01,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-20 00:08:02,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:08:02,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:08:02,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:08:02,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:08:02,262 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:08:02,263 INFO L432 ainManager$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 [2022-07-20 00:08:02,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd393a94/afeeaff90ff747bd913632dcddc610d1/FLAGcb552e2eb [2022-07-20 00:08:03,074 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:08:03,075 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 [2022-07-20 00:08:03,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd393a94/afeeaff90ff747bd913632dcddc610d1/FLAGcb552e2eb [2022-07-20 00:08:03,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd393a94/afeeaff90ff747bd913632dcddc610d1 [2022-07-20 00:08:03,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:08:03,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:08:03,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:08:03,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:08:03,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:08:03,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:08:03" (1/1) ... [2022-07-20 00:08:03,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18fc1bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:03, skipping insertion in model container [2022-07-20 00:08:03,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:08:03" (1/1) ... [2022-07-20 00:08:03,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:08:03,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:08:06,337 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] [2022-07-20 00:08:06,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:08:06,411 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:08:06,663 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) [2022-07-20 00:08:06,672 INFO L158 Benchmark]: Toolchain (without parser) took 3033.24ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 76.0MB in the end (delta: -12.9MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-07-20 00:08:06,673 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory was 45.1MB in the beginning and 45.0MB in the end (delta: 49.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 00:08:06,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3030.07ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 62.8MB in the beginning and 76.0MB in the end (delta: -13.1MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-07-20 00:08:06,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory was 45.1MB in the beginning and 45.0MB in the end (delta: 49.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3030.07ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 62.8MB in the beginning and 76.0MB in the end (delta: -13.1MB). Peak memory consumption was 62.3MB. 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-?-eb692b5 [2022-07-20 00:08:08,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:08:08,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:08:08,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:08:08,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:08:08,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:08:08,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:08:08,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:08:08,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:08:08,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:08:08,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:08:08,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:08:08,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:08:08,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:08:08,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:08:08,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:08:08,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:08:08,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:08:08,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:08:08,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:08:08,618 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:08:08,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:08:08,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:08:08,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:08:08,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:08:08,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:08:08,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:08:08,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:08:08,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:08:08,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:08:08,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:08:08,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:08:08,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:08:08,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:08:08,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:08:08,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:08:08,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:08:08,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:08:08,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:08:08,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:08:08,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:08:08,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:08:08,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 00:08:08,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:08:08,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:08:08,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:08:08,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:08:08,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:08:08,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:08:08,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:08:08,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:08:08,680 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:08:08,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:08:08,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:08:08,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:08:08,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:08:08,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:08:08,682 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 00:08:08,683 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 00:08:08,683 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 00:08:08,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:08:08,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:08:08,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:08:08,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:08:08,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:08:08,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:08:08,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:08:08,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:08:08,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:08:08,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:08:08,685 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 00:08:08,685 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 00:08:08,685 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:08:08,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:08:08,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:08:08,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 00:08:08,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-20 00:08:09,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:08:09,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:08:09,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:08:09,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:08:09,049 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:08:09,052 INFO L432 ainManager$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 [2022-07-20 00:08:09,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b96a1b2c/aa3727cc36ea46e4b19c2f50d51f63da/FLAG53638d011 [2022-07-20 00:08:09,871 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:08:09,872 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 [2022-07-20 00:08:09,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b96a1b2c/aa3727cc36ea46e4b19c2f50d51f63da/FLAG53638d011 [2022-07-20 00:08:10,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b96a1b2c/aa3727cc36ea46e4b19c2f50d51f63da [2022-07-20 00:08:10,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:08:10,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:08:10,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:08:10,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:08:10,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:08:10,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:08:10" (1/1) ... [2022-07-20 00:08:10,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37309732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:10, skipping insertion in model container [2022-07-20 00:08:10,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:08:10" (1/1) ... [2022-07-20 00:08:10,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:08:10,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:08:12,741 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] [2022-07-20 00:08:12,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:08:12,867 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 00:08:12,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:08:13,289 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] [2022-07-20 00:08:13,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:08:13,322 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:08:13,678 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] [2022-07-20 00:08:13,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:08:13,936 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:08:13,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13 WrapperNode [2022-07-20 00:08:13,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:08:13,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:08:13,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:08:13,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:08:13,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,181 INFO L137 Inliner]: procedures = 396, calls = 2295, calls flagged for inlining = 189, calls inlined = 143, statements flattened = 4429 [2022-07-20 00:08:14,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:08:14,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:08:14,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:08:14,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:08:14,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:08:14,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:08:14,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:08:14,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:08:14,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (1/1) ... [2022-07-20 00:08:14,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:08:14,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:08:14,507 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) [2022-07-20 00:08:14,536 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 [2022-07-20 00:08:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-20 00:08:14,552 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-20 00:08:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-20 00:08:14,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-20 00:08:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-20 00:08:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-20 00:08:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 00:08:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 00:08:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-07-20 00:08:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-07-20 00:08:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:08:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:08:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-07-20 00:08:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-07-20 00:08:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-07-20 00:08:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-07-20 00:08:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 00:08:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 00:08:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:08:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:08:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-07-20 00:08:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-07-20 00:08:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-07-20 00:08:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-07-20 00:08:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-20 00:08:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-20 00:08:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 00:08:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 00:08:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 00:08:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 00:08:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-07-20 00:08:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-07-20 00:08:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:08:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:08:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 00:08:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 00:08:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unmap_page_2 [2022-07-20 00:08:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unmap_page_2 [2022-07-20 00:08:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 00:08:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 00:08:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 00:08:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 00:08:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:08:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 00:08:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 00:08:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-07-20 00:08:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-07-20 00:08:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-20 00:08:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-20 00:08:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 00:08:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 00:08:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 00:08:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 00:08:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 00:08:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-07-20 00:08:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-07-20 00:08:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-20 00:08:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-20 00:08:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-20 00:08:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-20 00:08:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-07-20 00:08:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-07-20 00:08:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_macaddr [2022-07-20 00:08:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_macaddr [2022-07-20 00:08:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 00:08:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 00:08:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 00:08:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 00:08:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 00:08:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 00:08:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-07-20 00:08:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-07-20 00:08:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 00:08:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 00:08:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-20 00:08:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-20 00:08:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 00:08:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 00:08:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_features [2022-07-20 00:08:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_features [2022-07-20 00:08:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 00:08:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 00:08:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-07-20 00:08:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-07-20 00:08:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-20 00:08:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-20 00:08:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-07-20 00:08:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-07-20 00:08:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-07-20 00:08:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-07-20 00:08:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-20 00:08:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-20 00:08:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:08:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:08:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:08:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2022-07-20 00:08:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2022-07-20 00:08:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-07-20 00:08:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-07-20 00:08:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:08:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 00:08:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 00:08:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:08:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-20 00:08:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-20 00:08:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 00:08:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 00:08:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 00:08:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-07-20 00:08:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-07-20 00:08:14,575 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-20 00:08:14,575 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-20 00:08:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 00:08:14,578 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 00:08:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 00:08:14,578 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 00:08:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 00:08:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 00:08:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 00:08:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-07-20 00:08:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-07-20 00:08:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:08:14,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:08:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure jme_change_mtu [2022-07-20 00:08:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_change_mtu [2022-07-20 00:08:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-20 00:08:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-20 00:08:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-20 00:08:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-20 00:08:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 00:08:14,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-20 00:08:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-20 00:08:14,587 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-07-20 00:08:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-07-20 00:08:14,587 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-07-20 00:08:14,588 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-07-20 00:08:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 00:08:14,588 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 00:08:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 00:08:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-07-20 00:08:14,588 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-07-20 00:08:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 00:08:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 00:08:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-07-20 00:08:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-07-20 00:08:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 00:08:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 00:08:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:08:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:08:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure jme_ioctl [2022-07-20 00:08:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_ioctl [2022-07-20 00:08:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-07-20 00:08:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-07-20 00:08:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-07-20 00:08:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-07-20 00:08:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-07-20 00:08:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-07-20 00:08:14,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 00:08:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 00:08:14,591 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable_nosync [2022-07-20 00:08:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable_nosync [2022-07-20 00:08:14,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:08:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:08:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-07-20 00:08:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-07-20 00:08:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-07-20 00:08:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-07-20 00:08:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-07-20 00:08:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-07-20 00:08:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-20 00:08:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-20 00:08:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-20 00:08:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-20 00:08:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:08:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:08:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:08:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:08:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 00:08:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 00:08:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-07-20 00:08:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-07-20 00:08:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 00:08:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 00:08:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:08:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 00:08:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 00:08:14,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:08:14,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-07-20 00:08:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-07-20 00:08:14,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-07-20 00:08:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-07-20 00:08:14,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-07-20 00:08:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-07-20 00:08:14,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 00:08:14,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 00:08:14,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 00:08:14,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 00:08:14,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:08:14,598 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-07-20 00:08:14,599 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-07-20 00:08:14,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-20 00:08:14,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-20 00:08:14,599 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 00:08:14,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 00:08:14,599 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-07-20 00:08:14,599 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-07-20 00:08:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-20 00:08:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-20 00:08:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-07-20 00:08:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-07-20 00:08:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure jme_vlan_rx_register [2022-07-20 00:08:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_vlan_rx_register [2022-07-20 00:08:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-07-20 00:08:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-07-20 00:08:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 00:08:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 00:08:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 00:08:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 00:08:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-07-20 00:08:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-07-20 00:08:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-07-20 00:08:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-07-20 00:08:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-07-20 00:08:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-07-20 00:08:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 00:08:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 00:08:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-20 00:08:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-20 00:08:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-07-20 00:08:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-07-20 00:08:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 00:08:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 00:08:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 00:08:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-07-20 00:08:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-07-20 00:08:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 00:08:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 00:08:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 00:08:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-07-20 00:08:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-07-20 00:08:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-07-20 00:08:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-07-20 00:08:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:08:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:08:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 00:08:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 00:08:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-07-20 00:08:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-07-20 00:08:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:08:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:08:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-07-20 00:08:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-07-20 00:08:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-20 00:08:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-20 00:08:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-20 00:08:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-20 00:08:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-07-20 00:08:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-07-20 00:08:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-07-20 00:08:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-07-20 00:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-07-20 00:08:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-07-20 00:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-07-20 00:08:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-07-20 00:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fix_features [2022-07-20 00:08:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fix_features [2022-07-20 00:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-07-20 00:08:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-07-20 00:08:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-07-20 00:08:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-07-20 00:08:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-20 00:08:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-20 00:08:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 00:08:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 00:08:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_map_page_1 [2022-07-20 00:08:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_map_page_1 [2022-07-20 00:08:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-07-20 00:08:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-07-20 00:08:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-20 00:08:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-20 00:08:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-07-20 00:08:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-07-20 00:08:15,371 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:08:15,377 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:08:22,020 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:09:00,228 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:09:00,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:09:00,246 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-20 00:09:00,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:09:00 BoogieIcfgContainer [2022-07-20 00:09:00,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:09:00,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:09:00,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:09:00,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:09:00,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:08:10" (1/3) ... [2022-07-20 00:09:00,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37240505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:09:00, skipping insertion in model container [2022-07-20 00:09:00,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:08:13" (2/3) ... [2022-07-20 00:09:00,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37240505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:09:00, skipping insertion in model container [2022-07-20 00:09:00,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:09:00" (3/3) ... [2022-07-20 00:09:00,259 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-20 00:09:00,269 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:09:00,269 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:09:00,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:09:00,375 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@1dc713e5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@654cc579 [2022-07-20 00:09:00,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:09:00,386 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) [2022-07-20 00:09:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-20 00:09:00,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:00,420 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] [2022-07-20 00:09:00,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:00,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:00,426 INFO L85 PathProgramCache]: Analyzing trace with hash 914134315, now seen corresponding path program 1 times [2022-07-20 00:09:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:00,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801772177] [2022-07-20 00:09:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:00,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:00,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:00,445 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) [2022-07-20 00:09:00,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 00:09:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:01,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 00:09:02,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-20 00:09:02,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:02,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:02,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801772177] [2022-07-20 00:09:02,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801772177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:02,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:02,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:09:02,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009348178] [2022-07-20 00:09:02,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:02,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:09:02,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:09:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:09:02,579 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) [2022-07-20 00:09:03,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:03,632 INFO L93 Difference]: Finished difference Result 3865 states and 5546 transitions. [2022-07-20 00:09:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:09:03,636 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 [2022-07-20 00:09:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:03,666 INFO L225 Difference]: With dead ends: 3865 [2022-07-20 00:09:03,666 INFO L226 Difference]: Without dead ends: 1911 [2022-07-20 00:09:03,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:09:03,689 INFO L413 NwaCegarLoop]: 2716 mSDtfsCounter, 6 mSDsluCounter, 10844 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:03,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13560 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 00:09:03,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2022-07-20 00:09:03,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1911. [2022-07-20 00:09:03,861 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) [2022-07-20 00:09:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2702 transitions. [2022-07-20 00:09:03,882 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2702 transitions. Word has length 232 [2022-07-20 00:09:03,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:03,886 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2702 transitions. [2022-07-20 00:09:03,886 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) [2022-07-20 00:09:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2702 transitions. [2022-07-20 00:09:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-20 00:09:03,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:03,894 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] [2022-07-20 00:09:03,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:04,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:04,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:04,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash -772722983, now seen corresponding path program 1 times [2022-07-20 00:09:04,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:04,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359610054] [2022-07-20 00:09:04,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:04,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:04,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:04,113 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) [2022-07-20 00:09:04,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 00:09:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:05,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 00:09:05,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-20 00:09:06,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:09:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-20 00:09:08,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:08,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359610054] [2022-07-20 00:09:08,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359610054] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:09:08,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:09:08,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 00:09:08,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660696782] [2022-07-20 00:09:08,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:09:08,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 00:09:08,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:08,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 00:09:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:09:08,046 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) [2022-07-20 00:09:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:09,424 INFO L93 Difference]: Finished difference Result 3804 states and 5381 transitions. [2022-07-20 00:09:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:09:09,425 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 [2022-07-20 00:09:09,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:09,440 INFO L225 Difference]: With dead ends: 3804 [2022-07-20 00:09:09,440 INFO L226 Difference]: Without dead ends: 1912 [2022-07-20 00:09:09,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:09:09,451 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 9 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:09,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16131 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 00:09:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-07-20 00:09:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2022-07-20 00:09:09,527 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) [2022-07-20 00:09:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2703 transitions. [2022-07-20 00:09:09,544 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2703 transitions. Word has length 237 [2022-07-20 00:09:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:09,545 INFO L495 AbstractCegarLoop]: Abstraction has 1912 states and 2703 transitions. [2022-07-20 00:09:09,545 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) [2022-07-20 00:09:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2703 transitions. [2022-07-20 00:09:09,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-20 00:09:09,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:09,549 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] [2022-07-20 00:09:09,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:09,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:09,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1055728149, now seen corresponding path program 2 times [2022-07-20 00:09:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:09,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202400184] [2022-07-20 00:09:09,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:09:09,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:09,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:09,775 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) [2022-07-20 00:09:09,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 00:09:10,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:09:10,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:09:10,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:09:10,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:10,906 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-07-20 00:09:10,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:10,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:10,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202400184] [2022-07-20 00:09:10,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202400184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:10,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:10,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:09:10,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177894694] [2022-07-20 00:09:10,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:10,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:09:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:10,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:09:10,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:10,909 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) [2022-07-20 00:09:11,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:11,299 INFO L93 Difference]: Finished difference Result 5629 states and 7962 transitions. [2022-07-20 00:09:11,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:09:11,300 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 [2022-07-20 00:09:11,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:11,330 INFO L225 Difference]: With dead ends: 5629 [2022-07-20 00:09:11,330 INFO L226 Difference]: Without dead ends: 3755 [2022-07-20 00:09:11,342 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 [2022-07-20 00:09:11,345 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 [2022-07-20 00:09:11,347 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] [2022-07-20 00:09:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-20 00:09:11,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3752. [2022-07-20 00:09:11,550 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) [2022-07-20 00:09:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5307 transitions. [2022-07-20 00:09:11,578 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5307 transitions. Word has length 242 [2022-07-20 00:09:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:11,581 INFO L495 AbstractCegarLoop]: Abstraction has 3752 states and 5307 transitions. [2022-07-20 00:09:11,584 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) [2022-07-20 00:09:11,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5307 transitions. [2022-07-20 00:09:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-20 00:09:11,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:11,592 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] [2022-07-20 00:09:11,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:11,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:11,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:11,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1522031199, now seen corresponding path program 1 times [2022-07-20 00:09:11,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:11,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130467337] [2022-07-20 00:09:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:11,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:11,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:11,817 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) [2022-07-20 00:09:11,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 00:09:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:13,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 00:09:13,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-07-20 00:09:13,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:09:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-07-20 00:09:16,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:16,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130467337] [2022-07-20 00:09:16,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130467337] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:09:16,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:09:16,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-20 00:09:16,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806758114] [2022-07-20 00:09:16,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:09:16,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-20 00:09:16,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-20 00:09:16,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:09:16,457 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) [2022-07-20 00:09:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:18,097 INFO L93 Difference]: Finished difference Result 7489 states and 10595 transitions. [2022-07-20 00:09:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 00:09:18,099 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 [2022-07-20 00:09:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:18,126 INFO L225 Difference]: With dead ends: 7489 [2022-07-20 00:09:18,126 INFO L226 Difference]: Without dead ends: 3754 [2022-07-20 00:09:18,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:09:18,149 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 10 mSDsluCounter, 16127 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:18,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 00:09:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-07-20 00:09:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2022-07-20 00:09:18,282 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) [2022-07-20 00:09:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5309 transitions. [2022-07-20 00:09:18,302 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5309 transitions. Word has length 262 [2022-07-20 00:09:18,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:18,303 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5309 transitions. [2022-07-20 00:09:18,303 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) [2022-07-20 00:09:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5309 transitions. [2022-07-20 00:09:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-20 00:09:18,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:18,310 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] [2022-07-20 00:09:18,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:18,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:18,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:18,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:18,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1092106703, now seen corresponding path program 2 times [2022-07-20 00:09:18,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:18,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414407062] [2022-07-20 00:09:18,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:09:18,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:18,537 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) [2022-07-20 00:09:18,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 00:09:29,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 00:09:29,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:09:29,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:09:29,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-20 00:09:31,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:31,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:31,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414407062] [2022-07-20 00:09:31,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414407062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:31,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:31,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:09:31,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038465187] [2022-07-20 00:09:31,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:31,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:09:31,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:31,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:09:31,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:31,543 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) [2022-07-20 00:09:31,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:31,719 INFO L93 Difference]: Finished difference Result 3756 states and 5310 transitions. [2022-07-20 00:09:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:09:31,719 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 [2022-07-20 00:09:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:31,741 INFO L225 Difference]: With dead ends: 3756 [2022-07-20 00:09:31,742 INFO L226 Difference]: Without dead ends: 3753 [2022-07-20 00:09:31,745 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 [2022-07-20 00:09:31,746 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 [2022-07-20 00:09:31,746 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] [2022-07-20 00:09:31,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-20 00:09:31,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-20 00:09:31,885 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) [2022-07-20 00:09:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5307 transitions. [2022-07-20 00:09:31,904 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5307 transitions. Word has length 267 [2022-07-20 00:09:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:31,905 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5307 transitions. [2022-07-20 00:09:31,906 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) [2022-07-20 00:09:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5307 transitions. [2022-07-20 00:09:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-20 00:09:31,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:31,912 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] [2022-07-20 00:09:31,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:32,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:32,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash -505287589, now seen corresponding path program 1 times [2022-07-20 00:09:32,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:32,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201508316] [2022-07-20 00:09:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:32,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:32,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:32,139 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) [2022-07-20 00:09:32,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 00:09:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:33,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 00:09:33,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 236 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-07-20 00:09:34,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:09:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-20 00:09:37,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:37,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201508316] [2022-07-20 00:09:37,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201508316] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:09:37,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:09:37,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-20 00:09:37,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608452027] [2022-07-20 00:09:37,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:09:37,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 00:09:37,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:37,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 00:09:37,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:09:37,035 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) [2022-07-20 00:09:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:38,651 INFO L93 Difference]: Finished difference Result 7491 states and 10595 transitions. [2022-07-20 00:09:38,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:09:38,652 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 [2022-07-20 00:09:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:38,675 INFO L225 Difference]: With dead ends: 7491 [2022-07-20 00:09:38,675 INFO L226 Difference]: Without dead ends: 3755 [2022-07-20 00:09:38,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-20 00:09:38,695 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 11 mSDsluCounter, 21488 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:38,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24179 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 00:09:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-20 00:09:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3755. [2022-07-20 00:09:38,820 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) [2022-07-20 00:09:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5309 transitions. [2022-07-20 00:09:38,885 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5309 transitions. Word has length 268 [2022-07-20 00:09:38,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:38,885 INFO L495 AbstractCegarLoop]: Abstraction has 3755 states and 5309 transitions. [2022-07-20 00:09:38,886 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) [2022-07-20 00:09:38,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5309 transitions. [2022-07-20 00:09:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-20 00:09:38,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:38,892 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] [2022-07-20 00:09:38,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:39,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:39,107 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash -328377847, now seen corresponding path program 2 times [2022-07-20 00:09:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:39,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552334223] [2022-07-20 00:09:39,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:09:39,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:39,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:39,113 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) [2022-07-20 00:09:39,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 00:09:51,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 00:09:51,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:09:51,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:09:51,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-07-20 00:09:52,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:52,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:52,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552334223] [2022-07-20 00:09:52,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552334223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:52,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:52,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:09:52,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653506142] [2022-07-20 00:09:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:52,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:09:52,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:52,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:09:52,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:52,813 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) [2022-07-20 00:09:53,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:53,122 INFO L93 Difference]: Finished difference Result 11173 states and 15823 transitions. [2022-07-20 00:09:53,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:09:53,123 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 [2022-07-20 00:09:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:53,173 INFO L225 Difference]: With dead ends: 11173 [2022-07-20 00:09:53,173 INFO L226 Difference]: Without dead ends: 7450 [2022-07-20 00:09:53,193 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 [2022-07-20 00:09:53,194 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:09:53,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 5949 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 00:09:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7450 states. [2022-07-20 00:09:53,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7445. [2022-07-20 00:09:53,467 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) [2022-07-20 00:09:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10538 transitions. [2022-07-20 00:09:53,500 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10538 transitions. Word has length 273 [2022-07-20 00:09:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:53,500 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10538 transitions. [2022-07-20 00:09:53,501 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) [2022-07-20 00:09:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10538 transitions. [2022-07-20 00:09:53,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-07-20 00:09:53,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:53,528 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] [2022-07-20 00:09:53,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:53,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:53,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:53,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:53,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1796727306, now seen corresponding path program 1 times [2022-07-20 00:09:53,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:53,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895280371] [2022-07-20 00:09:53,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:53,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:53,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:53,749 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) [2022-07-20 00:09:53,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 00:09:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:09:56,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:09:56,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:09:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-07-20 00:09:56,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:09:56,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:09:56,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895280371] [2022-07-20 00:09:56,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895280371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:09:56,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:09:56,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:09:56,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301229763] [2022-07-20 00:09:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:09:56,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:09:56,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:09:56,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:09:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:09:56,716 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) [2022-07-20 00:09:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:09:57,916 INFO L93 Difference]: Finished difference Result 19843 states and 28038 transitions. [2022-07-20 00:09:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:09:57,917 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 [2022-07-20 00:09:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:09:57,995 INFO L225 Difference]: With dead ends: 19843 [2022-07-20 00:09:57,995 INFO L226 Difference]: Without dead ends: 12436 [2022-07-20 00:09:58,037 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 [2022-07-20 00:09:58,038 INFO L413 NwaCegarLoop]: 3053 mSDtfsCounter, 1838 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2022-07-20 00:09:58,039 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] [2022-07-20 00:09:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12436 states. [2022-07-20 00:09:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12436 to 12403. [2022-07-20 00:09:58,524 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) [2022-07-20 00:09:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 17517 transitions. [2022-07-20 00:09:58,587 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 17517 transitions. Word has length 476 [2022-07-20 00:09:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:09:58,588 INFO L495 AbstractCegarLoop]: Abstraction has 12403 states and 17517 transitions. [2022-07-20 00:09:58,589 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) [2022-07-20 00:09:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 17517 transitions. [2022-07-20 00:09:58,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2022-07-20 00:09:58,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:09:58,659 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] [2022-07-20 00:09:58,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 00:09:58,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:09:58,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:09:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:09:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1792837774, now seen corresponding path program 1 times [2022-07-20 00:09:58,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:09:58,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864362177] [2022-07-20 00:09:58,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:09:58,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:09:58,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:09:58,880 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) [2022-07-20 00:09:58,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 00:10:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:02,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 4881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:10:02,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12457 trivial. 0 not checked. [2022-07-20 00:10:02,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:02,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:10:02,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864362177] [2022-07-20 00:10:02,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864362177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:02,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:02,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:10:02,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419634454] [2022-07-20 00:10:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:02,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:10:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:10:02,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:10:02,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:10:02,815 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) [2022-07-20 00:10:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:03,819 INFO L93 Difference]: Finished difference Result 35147 states and 49473 transitions. [2022-07-20 00:10:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:10:03,819 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 [2022-07-20 00:10:03,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:03,940 INFO L225 Difference]: With dead ends: 35147 [2022-07-20 00:10:03,940 INFO L226 Difference]: Without dead ends: 22782 [2022-07-20 00:10:04,001 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 [2022-07-20 00:10:04,003 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 [2022-07-20 00:10:04,004 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] [2022-07-20 00:10:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22782 states. [2022-07-20 00:10:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22782 to 22769. [2022-07-20 00:10:05,071 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) [2022-07-20 00:10:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22769 states to 22769 states and 31989 transitions. [2022-07-20 00:10:05,179 INFO L78 Accepts]: Start accepts. Automaton has 22769 states and 31989 transitions. Word has length 1258 [2022-07-20 00:10:05,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:05,179 INFO L495 AbstractCegarLoop]: Abstraction has 22769 states and 31989 transitions. [2022-07-20 00:10:05,180 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) [2022-07-20 00:10:05,180 INFO L276 IsEmpty]: Start isEmpty. Operand 22769 states and 31989 transitions. [2022-07-20 00:10:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2022-07-20 00:10:05,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:05,220 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] [2022-07-20 00:10:05,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 00:10:05,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:10:05,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -346518197, now seen corresponding path program 1 times [2022-07-20 00:10:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:10:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110623660] [2022-07-20 00:10:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:05,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:10:05,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:10:05,444 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) [2022-07-20 00:10:05,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 00:10:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:09,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 5308 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:10:09,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 12891 trivial. 0 not checked. [2022-07-20 00:10:11,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:11,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:10:11,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110623660] [2022-07-20 00:10:11,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110623660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:11,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:11,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:10:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048092682] [2022-07-20 00:10:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:11,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:10:11,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:10:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:10:11,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:10:11,898 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) [2022-07-20 00:10:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:13,396 INFO L93 Difference]: Finished difference Result 56195 states and 79053 transitions. [2022-07-20 00:10:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:10:13,400 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 [2022-07-20 00:10:13,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:13,569 INFO L225 Difference]: With dead ends: 56195 [2022-07-20 00:10:13,569 INFO L226 Difference]: Without dead ends: 33474 [2022-07-20 00:10:13,803 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 [2022-07-20 00:10:13,804 INFO L413 NwaCegarLoop]: 5042 mSDtfsCounter, 2405 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-07-20 00:10:13,805 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] [2022-07-20 00:10:13,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33474 states. [2022-07-20 00:10:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33474 to 33461. [2022-07-20 00:10:15,022 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) [2022-07-20 00:10:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 46947 transitions. [2022-07-20 00:10:15,307 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 46947 transitions. Word has length 1402 [2022-07-20 00:10:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:15,308 INFO L495 AbstractCegarLoop]: Abstraction has 33461 states and 46947 transitions. [2022-07-20 00:10:15,309 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) [2022-07-20 00:10:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 46947 transitions. [2022-07-20 00:10:15,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2022-07-20 00:10:15,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:15,362 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] [2022-07-20 00:10:15,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 00:10:15,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:10:15,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1316402270, now seen corresponding path program 1 times [2022-07-20 00:10:15,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:10:15,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851452166] [2022-07-20 00:10:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:15,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:10:15,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:10:15,591 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) [2022-07-20 00:10:15,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 00:10:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:20,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 5352 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-20 00:10:20,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 13988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13988 trivial. 0 not checked. [2022-07-20 00:10:21,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:21,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:10:21,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851452166] [2022-07-20 00:10:21,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851452166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:21,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:21,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:10:21,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413940676] [2022-07-20 00:10:21,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:21,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:10:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:10:21,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:10:21,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:10:21,192 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) [2022-07-20 00:10:24,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:24,076 INFO L93 Difference]: Finished difference Result 67034 states and 94259 transitions. [2022-07-20 00:10:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:10:24,077 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 [2022-07-20 00:10:24,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:24,250 INFO L225 Difference]: With dead ends: 67034 [2022-07-20 00:10:24,251 INFO L226 Difference]: Without dead ends: 33621 [2022-07-20 00:10:24,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1418 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:10:24,508 INFO L413 NwaCegarLoop]: 2697 mSDtfsCounter, 12 mSDsluCounter, 16123 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:10:24,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18820 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-20 00:10:24,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33621 states. [2022-07-20 00:10:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33621 to 33509. [2022-07-20 00:10:26,472 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) [2022-07-20 00:10:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33509 states to 33509 states and 47011 transitions. [2022-07-20 00:10:26,653 INFO L78 Accepts]: Start accepts. Automaton has 33509 states and 47011 transitions. Word has length 1425 [2022-07-20 00:10:26,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:26,655 INFO L495 AbstractCegarLoop]: Abstraction has 33509 states and 47011 transitions. [2022-07-20 00:10:26,655 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) [2022-07-20 00:10:26,655 INFO L276 IsEmpty]: Start isEmpty. Operand 33509 states and 47011 transitions. [2022-07-20 00:10:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2022-07-20 00:10:26,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:26,705 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] [2022-07-20 00:10:26,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 00:10:26,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:10:26,924 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:26,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1415645786, now seen corresponding path program 1 times [2022-07-20 00:10:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:10:26,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251256552] [2022-07-20 00:10:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:26,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:10:26,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:10:26,930 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) [2022-07-20 00:10:26,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 00:10:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:32,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:10:32,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 2191 proven. 0 refuted. 0 times theorem prover too weak. 11796 trivial. 0 not checked. [2022-07-20 00:10:32,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:32,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:10:32,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251256552] [2022-07-20 00:10:32,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251256552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:32,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:32,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:10:32,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902238999] [2022-07-20 00:10:32,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:32,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:10:32,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:10:32,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:10:32,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:10:32,182 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) [2022-07-20 00:10:33,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:33,060 INFO L93 Difference]: Finished difference Result 67098 states and 94227 transitions. [2022-07-20 00:10:33,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:10:33,061 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 [2022-07-20 00:10:33,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:33,335 INFO L225 Difference]: With dead ends: 67098 [2022-07-20 00:10:33,336 INFO L226 Difference]: Without dead ends: 33637 [2022-07-20 00:10:33,459 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 [2022-07-20 00:10:33,461 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 [2022-07-20 00:10:33,461 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] [2022-07-20 00:10:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33637 states. [2022-07-20 00:10:34,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33637 to 33541. [2022-07-20 00:10:34,629 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) [2022-07-20 00:10:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33541 states to 33541 states and 47059 transitions. [2022-07-20 00:10:34,800 INFO L78 Accepts]: Start accepts. Automaton has 33541 states and 47059 transitions. Word has length 1428 [2022-07-20 00:10:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:34,801 INFO L495 AbstractCegarLoop]: Abstraction has 33541 states and 47059 transitions. [2022-07-20 00:10:34,802 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) [2022-07-20 00:10:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 33541 states and 47059 transitions. [2022-07-20 00:10:34,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-20 00:10:34,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:34,842 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] [2022-07-20 00:10:34,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 00:10:35,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:10:35,064 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash 201680618, now seen corresponding path program 1 times [2022-07-20 00:10:35,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:10:35,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418933622] [2022-07-20 00:10:35,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:35,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:10:35,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:10:35,071 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) [2022-07-20 00:10:35,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 00:10:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:40,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:10:40,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 3430 proven. 0 refuted. 0 times theorem prover too weak. 10556 trivial. 0 not checked. [2022-07-20 00:10:40,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:40,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:10:40,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418933622] [2022-07-20 00:10:40,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418933622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:40,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:40,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:10:40,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173847546] [2022-07-20 00:10:40,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:40,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:10:40,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:10:40,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:10:40,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:10:40,485 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) [2022-07-20 00:10:41,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:41,273 INFO L93 Difference]: Finished difference Result 67162 states and 94323 transitions. [2022-07-20 00:10:41,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:10:41,274 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 [2022-07-20 00:10:41,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:41,395 INFO L225 Difference]: With dead ends: 67162 [2022-07-20 00:10:41,396 INFO L226 Difference]: Without dead ends: 33669 [2022-07-20 00:10:41,524 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 [2022-07-20 00:10:41,525 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 [2022-07-20 00:10:41,525 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] [2022-07-20 00:10:41,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33669 states. [2022-07-20 00:10:42,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33669 to 33573. [2022-07-20 00:10:42,618 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) [2022-07-20 00:10:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33573 states to 33573 states and 47107 transitions. [2022-07-20 00:10:42,752 INFO L78 Accepts]: Start accepts. Automaton has 33573 states and 47107 transitions. Word has length 1427 [2022-07-20 00:10:42,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:42,753 INFO L495 AbstractCegarLoop]: Abstraction has 33573 states and 47107 transitions. [2022-07-20 00:10:42,753 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) [2022-07-20 00:10:42,754 INFO L276 IsEmpty]: Start isEmpty. Operand 33573 states and 47107 transitions. [2022-07-20 00:10:42,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-20 00:10:42,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:42,787 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] [2022-07-20 00:10:42,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-20 00:10:42,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:10:42,987 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:42,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:42,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2036392852, now seen corresponding path program 1 times [2022-07-20 00:10:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:10:42,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576104387] [2022-07-20 00:10:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:42,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:10:42,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:10:42,993 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) [2022-07-20 00:10:42,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 00:10:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:10:51,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:10:51,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:10:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 13294 trivial. 0 not checked. [2022-07-20 00:10:52,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:10:52,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:10:52,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576104387] [2022-07-20 00:10:52,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576104387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:10:52,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:10:52,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:10:52,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130075414] [2022-07-20 00:10:52,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:10:52,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:10:52,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:10:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:10:52,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:10:52,015 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) [2022-07-20 00:10:54,116 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 [] [2022-07-20 00:10:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:10:54,854 INFO L93 Difference]: Finished difference Result 67362 states and 94639 transitions. [2022-07-20 00:10:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:10:54,855 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 [2022-07-20 00:10:54,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:10:54,973 INFO L225 Difference]: With dead ends: 67362 [2022-07-20 00:10:54,974 INFO L226 Difference]: Without dead ends: 33837 [2022-07-20 00:10:55,061 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 [2022-07-20 00:10:55,061 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 [2022-07-20 00:10:55,062 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] [2022-07-20 00:10:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33837 states. [2022-07-20 00:10:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33837 to 33597. [2022-07-20 00:10:56,043 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) [2022-07-20 00:10:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33597 states to 33597 states and 47131 transitions. [2022-07-20 00:10:56,168 INFO L78 Accepts]: Start accepts. Automaton has 33597 states and 47131 transitions. Word has length 1427 [2022-07-20 00:10:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:10:56,170 INFO L495 AbstractCegarLoop]: Abstraction has 33597 states and 47131 transitions. [2022-07-20 00:10:56,170 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) [2022-07-20 00:10:56,170 INFO L276 IsEmpty]: Start isEmpty. Operand 33597 states and 47131 transitions. [2022-07-20 00:10:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2022-07-20 00:10:56,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:10:56,212 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] [2022-07-20 00:10:56,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-20 00:10:56,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:10:56,428 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:10:56,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:10:56,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1165066850, now seen corresponding path program 1 times [2022-07-20 00:10:56,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:10:56,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169622348] [2022-07-20 00:10:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:10:56,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:10:56,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:10:56,433 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) [2022-07-20 00:10:56,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 00:11:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:05,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 5512 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:11:05,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 15462 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 14713 trivial. 0 not checked. [2022-07-20 00:11:05,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:11:05,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:11:05,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169622348] [2022-07-20 00:11:05,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169622348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:11:05,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:11:05,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:11:05,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509197422] [2022-07-20 00:11:05,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:11:05,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:11:05,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:11:05,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:11:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:11:05,648 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) [2022-07-20 00:11:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:06,521 INFO L93 Difference]: Finished difference Result 67266 states and 94471 transitions. [2022-07-20 00:11:06,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:11:06,523 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 [2022-07-20 00:11:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:06,643 INFO L225 Difference]: With dead ends: 67266 [2022-07-20 00:11:06,644 INFO L226 Difference]: Without dead ends: 33717 [2022-07-20 00:11:06,907 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 [2022-07-20 00:11:06,908 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 [2022-07-20 00:11:06,908 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] [2022-07-20 00:11:06,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33717 states. [2022-07-20 00:11:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33717 to 33621. [2022-07-20 00:11:07,726 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) [2022-07-20 00:11:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33621 states to 33621 states and 47155 transitions. [2022-07-20 00:11:07,836 INFO L78 Accepts]: Start accepts. Automaton has 33621 states and 47155 transitions. Word has length 1479 [2022-07-20 00:11:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:07,837 INFO L495 AbstractCegarLoop]: Abstraction has 33621 states and 47155 transitions. [2022-07-20 00:11:07,837 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) [2022-07-20 00:11:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 33621 states and 47155 transitions. [2022-07-20 00:11:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-07-20 00:11:07,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:07,882 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] [2022-07-20 00:11:08,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-20 00:11:08,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:11:08,108 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:08,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:08,108 INFO L85 PathProgramCache]: Analyzing trace with hash -710622717, now seen corresponding path program 1 times [2022-07-20 00:11:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:11:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676146745] [2022-07-20 00:11:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:08,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:11:08,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:11:08,112 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) [2022-07-20 00:11:08,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 00:11:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:17,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 00:11:17,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 805 proven. 1 refuted. 0 times theorem prover too weak. 16243 trivial. 0 not checked. [2022-07-20 00:11:17,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:11:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-07-20 00:11:19,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:11:19,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676146745] [2022-07-20 00:11:19,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676146745] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:11:19,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:11:19,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-20 00:11:19,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048057076] [2022-07-20 00:11:19,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:11:19,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:11:19,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:11:19,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:11:19,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:11:19,996 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) [2022-07-20 00:11:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:21,224 INFO L93 Difference]: Finished difference Result 67554 states and 94903 transitions. [2022-07-20 00:11:21,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:11:21,225 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 [2022-07-20 00:11:21,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:21,361 INFO L225 Difference]: With dead ends: 67554 [2022-07-20 00:11:21,362 INFO L226 Difference]: Without dead ends: 33981 [2022-07-20 00:11:21,453 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 [2022-07-20 00:11:21,454 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 [2022-07-20 00:11:21,454 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] [2022-07-20 00:11:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2022-07-20 00:11:22,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 33981. [2022-07-20 00:11:22,446 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) [2022-07-20 00:11:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33981 states to 33981 states and 47659 transitions. [2022-07-20 00:11:22,569 INFO L78 Accepts]: Start accepts. Automaton has 33981 states and 47659 transitions. Word has length 1528 [2022-07-20 00:11:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:22,570 INFO L495 AbstractCegarLoop]: Abstraction has 33981 states and 47659 transitions. [2022-07-20 00:11:22,570 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) [2022-07-20 00:11:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 33981 states and 47659 transitions. [2022-07-20 00:11:22,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1675 [2022-07-20 00:11:22,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:22,601 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] [2022-07-20 00:11:22,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-20 00:11:22,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:11:22,802 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:22,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:22,803 INFO L85 PathProgramCache]: Analyzing trace with hash -672348468, now seen corresponding path program 1 times [2022-07-20 00:11:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:11:22,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786134880] [2022-07-20 00:11:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:22,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:11:22,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:11:22,808 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) [2022-07-20 00:11:22,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 00:11:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:11:36,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 6066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 00:11:36,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:11:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 972 proven. 1 refuted. 0 times theorem prover too weak. 21538 trivial. 0 not checked. [2022-07-20 00:11:36,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:11:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22510 trivial. 0 not checked. [2022-07-20 00:11:39,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:11:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786134880] [2022-07-20 00:11:39,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786134880] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:11:39,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:11:39,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-20 00:11:39,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641672696] [2022-07-20 00:11:39,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:11:39,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:11:39,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:11:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:11:39,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:11:39,285 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) [2022-07-20 00:11:41,363 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 [] [2022-07-20 00:11:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:11:42,868 INFO L93 Difference]: Finished difference Result 69858 states and 98143 transitions. [2022-07-20 00:11:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:11:42,870 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 [2022-07-20 00:11:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:11:43,036 INFO L225 Difference]: With dead ends: 69858 [2022-07-20 00:11:43,037 INFO L226 Difference]: Without dead ends: 35925 [2022-07-20 00:11:43,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3347 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:11:43,142 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 35 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:11:43,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 8108 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 00:11:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35925 states. [2022-07-20 00:11:44,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35925 to 35925. [2022-07-20 00:11:44,263 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) [2022-07-20 00:11:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35925 states to 35925 states and 50395 transitions. [2022-07-20 00:11:44,399 INFO L78 Accepts]: Start accepts. Automaton has 35925 states and 50395 transitions. Word has length 1674 [2022-07-20 00:11:44,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:11:44,400 INFO L495 AbstractCegarLoop]: Abstraction has 35925 states and 50395 transitions. [2022-07-20 00:11:44,400 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) [2022-07-20 00:11:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand 35925 states and 50395 transitions. [2022-07-20 00:11:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2418 [2022-07-20 00:11:44,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:11:44,454 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] [2022-07-20 00:11:44,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 00:11:44,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:11:44,680 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:11:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:11:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1455561723, now seen corresponding path program 1 times [2022-07-20 00:11:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:11:44,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612870457] [2022-07-20 00:11:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:11:44,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:11:44,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:11:44,686 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) [2022-07-20 00:11:44,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process