./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:52:33,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:52:33,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:52:33,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:52:33,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:52:33,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:52:33,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:52:33,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:52:33,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:52:33,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:52:33,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:52:33,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:52:33,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:52:33,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:52:33,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:52:33,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:52:33,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:52:33,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:52:33,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:52:33,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:52:33,225 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:52:33,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:52:33,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:52:33,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:52:33,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:52:33,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:52:33,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:52:33,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:52:33,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:52:33,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:52:33,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:52:33,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:52:33,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:52:33,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:52:33,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:52:33,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:52:33,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:52:33,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:52:33,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:52:33,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:52:33,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:52:33,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:52:33,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:52:33,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:52:33,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:52:33,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:52:33,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:52:33,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:52:33,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:52:33,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:52:33,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:52:33,289 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:52:33,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:52:33,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:52:33,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:52:33,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:52:33,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:52:33,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:52:33,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:52:33,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:52:33,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:52:33,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:52:33,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:52:33,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:52:33,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:52:33,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:52:33,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:52:33,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:52:33,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:52:33,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:52:33,295 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:52:33,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:52:33,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:52:33,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-21 12:52:33,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:52:33,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:52:33,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:52:33,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:52:33,612 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:52:33,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 12:52:33,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f2c4e97/e1be5844f0284bd59fac97c979dbd465/FLAGd9090ad42 [2022-07-21 12:52:34,425 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:52:34,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 12:52:34,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f2c4e97/e1be5844f0284bd59fac97c979dbd465/FLAGd9090ad42 [2022-07-21 12:52:34,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f2c4e97/e1be5844f0284bd59fac97c979dbd465 [2022-07-21 12:52:34,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:52:34,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:52:34,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:52:34,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:52:34,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:52:34,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:34" (1/1) ... [2022-07-21 12:52:34,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3457a192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34, skipping insertion in model container [2022-07-21 12:52:34,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:34" (1/1) ... [2022-07-21 12:52:34,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:52:34,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:52:36,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-21 12:52:36,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:36,173 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:52:36,344 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 12:52:36,349 INFO L158 Benchmark]: Toolchain (without parser) took 1818.18ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 43.3MB in the beginning and 40.2MB in the end (delta: 3.1MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2022-07-21 12:52:36,350 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 34.0MB in the beginning and 33.9MB in the end (delta: 60.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 12:52:36,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1815.18ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 43.2MB in the beginning and 40.2MB in the end (delta: 2.9MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2022-07-21 12:52:36,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 34.0MB in the beginning and 33.9MB in the end (delta: 60.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1815.18ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 43.2MB in the beginning and 40.2MB in the end (delta: 2.9MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned int )val & 3U [7278]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:52:38,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:52:38,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:52:38,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:52:38,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:52:38,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:52:38,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:52:38,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:52:38,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:52:38,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:52:38,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:52:38,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:52:38,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:52:38,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:52:38,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:52:38,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:52:38,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:52:38,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:52:38,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:52:38,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:52:38,161 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:52:38,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:52:38,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:52:38,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:52:38,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:52:38,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:52:38,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:52:38,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:52:38,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:52:38,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:52:38,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:52:38,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:52:38,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:52:38,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:52:38,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:52:38,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:52:38,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:52:38,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:52:38,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:52:38,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:52:38,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:52:38,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:52:38,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 12:52:38,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:52:38,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:52:38,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:52:38,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:52:38,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:52:38,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:52:38,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:52:38,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:52:38,222 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:52:38,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:52:38,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:52:38,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:52:38,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:52:38,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:52:38,224 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 12:52:38,224 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 12:52:38,224 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 12:52:38,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:52:38,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:52:38,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:52:38,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:52:38,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:52:38,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:52:38,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:52:38,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:52:38,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:52:38,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:52:38,227 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 12:52:38,227 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 12:52:38,227 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:52:38,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:52:38,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:52:38,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 12:52:38,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2022-07-21 12:52:38,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:52:38,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:52:38,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:52:38,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:52:38,603 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:52:38,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 12:52:38,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a070a807/22aa098f159e4fd09333856816a8c237/FLAG43ebd8467 [2022-07-21 12:52:39,465 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:52:39,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 12:52:39,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a070a807/22aa098f159e4fd09333856816a8c237/FLAG43ebd8467 [2022-07-21 12:52:40,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a070a807/22aa098f159e4fd09333856816a8c237 [2022-07-21 12:52:40,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:52:40,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:52:40,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:52:40,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:52:40,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:52:40,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:40" (1/1) ... [2022-07-21 12:52:40,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1849f0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:40, skipping insertion in model container [2022-07-21 12:52:40,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:40" (1/1) ... [2022-07-21 12:52:40,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:52:40,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:52:41,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-21 12:52:41,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:41,825 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 12:52:41,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:52:42,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-21 12:52:42,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:42,226 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:52:42,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2022-07-21 12:52:42,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:42,622 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:52:42,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42 WrapperNode [2022-07-21 12:52:42,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:52:42,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:52:42,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:52:42,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:52:42,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:42,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:42,874 INFO L137 Inliner]: procedures = 229, calls = 1656, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3017 [2022-07-21 12:52:42,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:52:42,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:52:42,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:52:42,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:52:42,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:42,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:42,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:42,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:43,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:43,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:43,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:43,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:52:43,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:52:43,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:52:43,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:52:43,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (1/1) ... [2022-07-21 12:52:43,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:52:43,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:52:43,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 12:52:43,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 12:52:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 12:52:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 12:52:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 12:52:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 12:52:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 12:52:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:52:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:52:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:52:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:52:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-21 12:52:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-21 12:52:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 12:52:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 12:52:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 12:52:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 12:52:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:52:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:52:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 12:52:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 12:52:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:52:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:52:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 12:52:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 12:52:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:52:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:52:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:52:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:52:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 12:52:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 12:52:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-21 12:52:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-21 12:52:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 12:52:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 12:52:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:52:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-07-21 12:52:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-07-21 12:52:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:52:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-21 12:52:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-21 12:52:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:52:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:52:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 12:52:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 12:52:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 12:52:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:52:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 12:52:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 12:52:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 12:52:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:52:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-07-21 12:52:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-07-21 12:52:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 12:52:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 12:52:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 12:52:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 12:52:43,296 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 12:52:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-21 12:52:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-21 12:52:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-07-21 12:52:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-07-21 12:52:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 12:52:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 12:52:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 12:52:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 12:52:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 12:52:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 12:52:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-07-21 12:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-07-21 12:52:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-07-21 12:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-07-21 12:52:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 12:52:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 12:52:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-07-21 12:52:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-07-21 12:52:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-07-21 12:52:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-07-21 12:52:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-07-21 12:52:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-07-21 12:52:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 12:52:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 12:52:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 12:52:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 12:52:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-07-21 12:52:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-07-21 12:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-21 12:52:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-21 12:52:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-07-21 12:52:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-07-21 12:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 12:52:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 12:52:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 12:52:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 12:52:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 12:52:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 12:52:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-07-21 12:52:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-07-21 12:52:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 12:52:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 12:52:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 12:52:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 12:52:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 12:52:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 12:52:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-21 12:52:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-21 12:52:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 12:52:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 12:52:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 12:52:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 12:52:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 12:52:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 12:52:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:52:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:52:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:52:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:52:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:52:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-21 12:52:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-21 12:52:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-07-21 12:52:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-07-21 12:52:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:52:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-07-21 12:52:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-07-21 12:52:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 12:52:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 12:52:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:52:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-07-21 12:52:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-07-21 12:52:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 12:52:43,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 12:52:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 12:52:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 12:52:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 12:52:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-07-21 12:52:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-07-21 12:52:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-07-21 12:52:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-07-21 12:52:43,321 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-07-21 12:52:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-07-21 12:52:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 12:52:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 12:52:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 12:52:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 12:52:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 12:52:43,322 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-07-21 12:52:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-07-21 12:52:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-21 12:52:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-21 12:52:43,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:52:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:52:44,156 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:52:44,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:52:47,021 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:53:49,558 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:53:49,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:53:49,572 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:53:49,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:49 BoogieIcfgContainer [2022-07-21 12:53:49,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:53:49,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:53:49,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:53:49,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:53:49,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:40" (1/3) ... [2022-07-21 12:53:49,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa26e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:49, skipping insertion in model container [2022-07-21 12:53:49,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:42" (2/3) ... [2022-07-21 12:53:49,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa26e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:49, skipping insertion in model container [2022-07-21 12:53:49,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:49" (3/3) ... [2022-07-21 12:53:49,582 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-07-21 12:53:49,595 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:53:49,595 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:53:49,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:53:49,662 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@17e7581f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e057d72 [2022-07-21 12:53:49,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:53:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2022-07-21 12:53:49,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 12:53:49,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:49,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:49,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:49,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1435178121, now seen corresponding path program 1 times [2022-07-21 12:53:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:49,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670986279] [2022-07-21 12:53:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:49,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:49,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:49,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:53:49,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 12:53:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:50,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:53:50,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:53:52,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:52,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:52,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670986279] [2022-07-21 12:53:52,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670986279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:52,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:52,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:53:52,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303781974] [2022-07-21 12:53:52,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:52,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:53:52,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:52,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:53:52,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:53:52,701 INFO L87 Difference]: Start difference. First operand has 1115 states, 780 states have (on average 1.3205128205128205) internal successors, (1030), 801 states have internal predecessors, (1030), 274 states have call successors, (274), 60 states have call predecessors, (274), 59 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:53:53,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:53,654 INFO L93 Difference]: Finished difference Result 3339 states and 4785 transitions. [2022-07-21 12:53:53,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:53:53,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-21 12:53:53,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:53,692 INFO L225 Difference]: With dead ends: 3339 [2022-07-21 12:53:53,693 INFO L226 Difference]: Without dead ends: 2187 [2022-07-21 12:53:53,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:53:53,712 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1543 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:53,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 7436 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:53:53,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-07-21 12:53:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2178. [2022-07-21 12:53:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 1528 states have (on average 1.3082460732984293) internal successors, (1999), 1554 states have internal predecessors, (1999), 532 states have call successors, (532), 118 states have call predecessors, (532), 117 states have return successors, (533), 531 states have call predecessors, (533), 531 states have call successors, (533) [2022-07-21 12:53:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 3064 transitions. [2022-07-21 12:53:53,913 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 3064 transitions. Word has length 158 [2022-07-21 12:53:53,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:53,914 INFO L495 AbstractCegarLoop]: Abstraction has 2178 states and 3064 transitions. [2022-07-21 12:53:53,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:53:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 3064 transitions. [2022-07-21 12:53:53,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 12:53:53,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:53,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:53,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 12:53:54,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:54,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:54,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:54,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1612545232, now seen corresponding path program 1 times [2022-07-21 12:53:54,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:54,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126196295] [2022-07-21 12:53:54,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:54,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:54,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:54,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:53:54,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 12:53:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:55,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:53:55,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:53:57,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:57,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:57,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126196295] [2022-07-21 12:53:57,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126196295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:57,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:57,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:53:57,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568757536] [2022-07-21 12:53:57,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:53:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:53:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:53:57,025 INFO L87 Difference]: Start difference. First operand 2178 states and 3064 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:53:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:58,036 INFO L93 Difference]: Finished difference Result 6535 states and 9203 transitions. [2022-07-21 12:53:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:53:58,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2022-07-21 12:53:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:58,068 INFO L225 Difference]: With dead ends: 6535 [2022-07-21 12:53:58,068 INFO L226 Difference]: Without dead ends: 4366 [2022-07-21 12:53:58,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:53:58,084 INFO L413 NwaCegarLoop]: 1935 mSDtfsCounter, 1512 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 7313 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:58,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 7313 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:53:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-07-21 12:53:58,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4351. [2022-07-21 12:53:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3054 states have (on average 1.306483300589391) internal successors, (3990), 3106 states have internal predecessors, (3990), 1060 states have call successors, (1060), 237 states have call predecessors, (1060), 236 states have return successors, (1067), 1059 states have call predecessors, (1067), 1059 states have call successors, (1067) [2022-07-21 12:53:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6117 transitions. [2022-07-21 12:53:58,269 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6117 transitions. Word has length 153 [2022-07-21 12:53:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:58,270 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6117 transitions. [2022-07-21 12:53:58,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:53:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6117 transitions. [2022-07-21 12:53:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 12:53:58,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:58,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:58,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:58,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:58,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash 907320420, now seen corresponding path program 1 times [2022-07-21 12:53:58,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:58,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967701776] [2022-07-21 12:53:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:58,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:58,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:58,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:53:58,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 12:53:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:59,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:53:59,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:54:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:54:01,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:54:01,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:54:01,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967701776] [2022-07-21 12:54:01,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967701776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:54:01,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:54:01,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:54:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777621386] [2022-07-21 12:54:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:54:01,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:54:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:54:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:54:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:54:01,086 INFO L87 Difference]: Start difference. First operand 4351 states and 6117 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:54:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:54:02,188 INFO L93 Difference]: Finished difference Result 13068 states and 18388 transitions. [2022-07-21 12:54:02,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:54:02,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2022-07-21 12:54:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:54:02,253 INFO L225 Difference]: With dead ends: 13068 [2022-07-21 12:54:02,253 INFO L226 Difference]: Without dead ends: 8726 [2022-07-21 12:54:02,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:54:02,283 INFO L413 NwaCegarLoop]: 1928 mSDtfsCounter, 1513 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:54:02,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 7294 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:54:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2022-07-21 12:54:02,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8659. [2022-07-21 12:54:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8659 states, 6074 states have (on average 1.3062232466249588) internal successors, (7934), 6190 states have internal predecessors, (7934), 2112 states have call successors, (2112), 473 states have call predecessors, (2112), 472 states have return successors, (2135), 2099 states have call predecessors, (2135), 2111 states have call successors, (2135) [2022-07-21 12:54:02,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8659 states to 8659 states and 12181 transitions. [2022-07-21 12:54:02,658 INFO L78 Accepts]: Start accepts. Automaton has 8659 states and 12181 transitions. Word has length 152 [2022-07-21 12:54:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:54:02,660 INFO L495 AbstractCegarLoop]: Abstraction has 8659 states and 12181 transitions. [2022-07-21 12:54:02,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:54:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8659 states and 12181 transitions. [2022-07-21 12:54:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-21 12:54:02,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:54:02,675 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:54:02,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 12:54:02,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:54:02,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:54:02,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:54:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1809736159, now seen corresponding path program 1 times [2022-07-21 12:54:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:54:02,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589167985] [2022-07-21 12:54:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:54:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:54:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:54:02,903 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) [2022-07-21 12:54:02,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 12:54:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:54:03,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:54:04,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:54:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:54:05,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:54:05,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:54:05,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589167985] [2022-07-21 12:54:05,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589167985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:54:05,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:54:05,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:54:05,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384308712] [2022-07-21 12:54:05,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:54:05,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:54:05,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:54:05,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:54:05,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:54:05,483 INFO L87 Difference]: Start difference. First operand 8659 states and 12181 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:54:06,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:54:06,605 INFO L93 Difference]: Finished difference Result 25850 states and 36374 transitions. [2022-07-21 12:54:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:54:06,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2022-07-21 12:54:06,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:54:06,740 INFO L225 Difference]: With dead ends: 25850 [2022-07-21 12:54:06,740 INFO L226 Difference]: Without dead ends: 17200 [2022-07-21 12:54:06,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:54:06,802 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 1514 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:54:06,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 6911 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:54:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17200 states. [2022-07-21 12:54:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17200 to 17128. [2022-07-21 12:54:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17128 states, 12023 states have (on average 1.3049155784745903) internal successors, (15689), 12247 states have internal predecessors, (15689), 4162 states have call successors, (4162), 943 states have call predecessors, (4162), 942 states have return successors, (4225), 4141 states have call predecessors, (4225), 4161 states have call successors, (4225) [2022-07-21 12:54:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17128 states to 17128 states and 24076 transitions. [2022-07-21 12:54:07,737 INFO L78 Accepts]: Start accepts. Automaton has 17128 states and 24076 transitions. Word has length 154 [2022-07-21 12:54:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:54:07,738 INFO L495 AbstractCegarLoop]: Abstraction has 17128 states and 24076 transitions. [2022-07-21 12:54:07,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:54:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 17128 states and 24076 transitions. [2022-07-21 12:54:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 12:54:07,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:54:07,755 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:54:07,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 12:54:07,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:54:07,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:54:07,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:54:07,976 INFO L85 PathProgramCache]: Analyzing trace with hash 111546844, now seen corresponding path program 1 times [2022-07-21 12:54:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:54:07,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850985450] [2022-07-21 12:54:07,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:54:07,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:54:07,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:54:07,980 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) [2022-07-21 12:54:07,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 12:54:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:54:09,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 12:54:09,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:54:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-21 12:54:11,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:54:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-21 12:54:13,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:54:13,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850985450] [2022-07-21 12:54:13,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850985450] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 12:54:13,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:54:13,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-21 12:54:13,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665867561] [2022-07-21 12:54:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:54:13,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 12:54:13,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:54:13,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 12:54:13,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:54:13,243 INFO L87 Difference]: Start difference. First operand 17128 states and 24076 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 12:54:15,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:54:17,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:54:48,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:54:48,851 INFO L93 Difference]: Finished difference Result 46150 states and 65399 transitions. [2022-07-21 12:54:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:54:48,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2022-07-21 12:54:48,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:54:49,132 INFO L225 Difference]: With dead ends: 46150 [2022-07-21 12:54:49,132 INFO L226 Difference]: Without dead ends: 29031 [2022-07-21 12:54:49,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-21 12:54:49,210 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 2406 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 330 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 13667 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:54:49,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 13667 Invalid, 2398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [330 Valid, 2066 Invalid, 2 Unknown, 0 Unchecked, 31.6s Time] [2022-07-21 12:54:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29031 states. [2022-07-21 12:54:50,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29031 to 25498. [2022-07-21 12:54:50,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25498 states, 17897 states have (on average 1.3053584399620048) internal successors, (23362), 18225 states have internal predecessors, (23362), 6200 states have call successors, (6200), 1401 states have call predecessors, (6200), 1400 states have return successors, (6287), 6175 states have call predecessors, (6287), 6199 states have call successors, (6287) [2022-07-21 12:54:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25498 states to 25498 states and 35849 transitions. [2022-07-21 12:54:50,530 INFO L78 Accepts]: Start accepts. Automaton has 25498 states and 35849 transitions. Word has length 163 [2022-07-21 12:54:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:54:50,531 INFO L495 AbstractCegarLoop]: Abstraction has 25498 states and 35849 transitions. [2022-07-21 12:54:50,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 12:54:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 25498 states and 35849 transitions. [2022-07-21 12:54:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-21 12:54:50,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:54:50,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:54:50,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 12:54:50,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:54:50,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:54:50,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:54:50,764 INFO L85 PathProgramCache]: Analyzing trace with hash -25816105, now seen corresponding path program 1 times [2022-07-21 12:54:50,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:54:50,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266439964] [2022-07-21 12:54:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:54:50,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:54:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:54:50,768 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) [2022-07-21 12:54:50,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 12:54:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:54:51,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 12:54:51,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:54:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:54:54,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:54:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:54:56,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:54:56,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266439964] [2022-07-21 12:54:56,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266439964] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:54:56,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:54:56,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-21 12:54:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729775828] [2022-07-21 12:54:56,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:54:56,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:54:56,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:54:56,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:54:56,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:54:56,154 INFO L87 Difference]: Start difference. First operand 25498 states and 35849 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-21 12:54:58,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:55:00,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:55:02,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:56:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:56:07,281 INFO L93 Difference]: Finished difference Result 58644 states and 82941 transitions. [2022-07-21 12:56:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-21 12:56:07,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 169 [2022-07-21 12:56:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:56:07,493 INFO L225 Difference]: With dead ends: 58644 [2022-07-21 12:56:07,494 INFO L226 Difference]: Without dead ends: 33155 [2022-07-21 12:56:07,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 12:56:07,591 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 5706 mSDsluCounter, 20048 mSDsCounter, 0 mSdLazyCounter, 4944 mSolverCounterSat, 1352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5833 SdHoareTripleChecker+Valid, 23782 SdHoareTripleChecker+Invalid, 6299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 4944 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:56:07,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5833 Valid, 23782 Invalid, 6299 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1352 Valid, 4944 Invalid, 3 Unknown, 0 Unchecked, 64.5s Time] [2022-07-21 12:56:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33155 states. [2022-07-21 12:56:08,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33155 to 29604. [2022-07-21 12:56:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29604 states, 20779 states have (on average 1.3051157418547572) internal successors, (27119), 21163 states have internal predecessors, (27119), 7194 states have call successors, (7194), 1631 states have call predecessors, (7194), 1630 states have return successors, (7293), 7161 states have call predecessors, (7293), 7193 states have call successors, (7293) [2022-07-21 12:56:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29604 states to 29604 states and 41606 transitions. [2022-07-21 12:56:09,097 INFO L78 Accepts]: Start accepts. Automaton has 29604 states and 41606 transitions. Word has length 169 [2022-07-21 12:56:09,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:56:09,099 INFO L495 AbstractCegarLoop]: Abstraction has 29604 states and 41606 transitions. [2022-07-21 12:56:09,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 9 states have internal predecessors, (152), 4 states have call successors, (41), 4 states have call predecessors, (41), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-07-21 12:56:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 29604 states and 41606 transitions. [2022-07-21 12:56:09,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 12:56:09,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:56:09,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:56:09,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 12:56:09,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:56:09,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:56:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:56:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash -3469995, now seen corresponding path program 1 times [2022-07-21 12:56:09,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:56:09,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108355703] [2022-07-21 12:56:09,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:56:09,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:56:09,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:56:09,345 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) [2022-07-21 12:56:09,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 12:56:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:56:10,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 12:56:10,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:56:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:56:12,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:56:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 12:56:14,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:56:14,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108355703] [2022-07-21 12:56:14,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108355703] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:56:14,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:56:14,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-21 12:56:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305407351] [2022-07-21 12:56:14,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:56:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:56:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:56:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:56:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:56:14,501 INFO L87 Difference]: Start difference. First operand 29604 states and 41606 transitions. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 9 states have internal predecessors, (145), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 12:56:16,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:56:18,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:56:20,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:56:22,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []