./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:15:23,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:15:23,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:15:23,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:15:23,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:15:23,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:15:23,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:15:23,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:15:23,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:15:23,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:15:23,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:15:23,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:15:23,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:15:23,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:15:23,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:15:23,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:15:23,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:15:23,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:15:23,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:15:23,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:15:23,159 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:15:23,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:15:23,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:15:23,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:15:23,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:15:23,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:15:23,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:15:23,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:15:23,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:15:23,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:15:23,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:15:23,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:15:23,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:15:23,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:15:23,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:15:23,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:15:23,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:15:23,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:15:23,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:15:23,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:15:23,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:15:23,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:15:23,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:15:23,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:15:23,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:15:23,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:15:23,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:15:23,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:15:23,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:15:23,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:15:23,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:15:23,226 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:15:23,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:15:23,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:15:23,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:15:23,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:15:23,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:15:23,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:15:23,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:15:23,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:15:23,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:15:23,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:15:23,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:15:23,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:15:23,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:15:23,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:15:23,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:15:23,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:15:23,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:15:23,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:15:23,232 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:15:23,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:15:23,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:15:23,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-07-23 01:15:23,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:15:23,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:15:23,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:15:23,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:15:23,446 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:15:23,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-23 01:15:23,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001c4df4a/fdc1f23b08ec4f0c9d39bf1f145a814a/FLAG6dc69b917 [2022-07-23 01:15:24,197 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:15:24,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-23 01:15:24,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001c4df4a/fdc1f23b08ec4f0c9d39bf1f145a814a/FLAG6dc69b917 [2022-07-23 01:15:24,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001c4df4a/fdc1f23b08ec4f0c9d39bf1f145a814a [2022-07-23 01:15:24,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:15:24,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:15:24,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:15:24,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:15:24,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:15:24,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:15:24" (1/1) ... [2022-07-23 01:15:24,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bcd54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:24, skipping insertion in model container [2022-07-23 01:15:24,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:15:24" (1/1) ... [2022-07-23 01:15:24,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:15:24,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:15:26,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-23 01:15:26,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:15:26,946 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:15:27,411 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: data = data & 4294967171U [8328] 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) [2022-07-23 01:15:27,417 INFO L158 Benchmark]: Toolchain (without parser) took 3110.72ms. Allocated memory was 96.5MB in the beginning and 197.1MB in the end (delta: 100.7MB). Free memory was 63.4MB in the beginning and 93.4MB in the end (delta: -30.1MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-07-23 01:15:27,417 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 01:15:27,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3109.20ms. Allocated memory was 96.5MB in the beginning and 197.1MB in the end (delta: 100.7MB). Free memory was 63.4MB in the beginning and 93.4MB in the end (delta: -30.1MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-07-23 01:15:27,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3109.20ms. Allocated memory was 96.5MB in the beginning and 197.1MB in the end (delta: 100.7MB). Free memory was 63.4MB in the beginning and 93.4MB in the end (delta: -30.1MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: data = data & 4294967171U [8328] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294967171U [8328]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:15:29,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:15:29,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:15:29,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:15:29,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:15:29,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:15:29,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:15:29,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:15:29,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:15:29,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:15:29,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:15:29,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:15:29,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:15:29,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:15:29,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:15:29,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:15:29,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:15:29,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:15:29,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:15:29,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:15:29,328 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:15:29,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:15:29,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:15:29,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:15:29,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:15:29,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:15:29,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:15:29,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:15:29,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:15:29,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:15:29,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:15:29,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:15:29,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:15:29,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:15:29,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:15:29,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:15:29,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:15:29,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:15:29,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:15:29,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:15:29,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:15:29,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:15:29,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 01:15:29,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:15:29,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:15:29,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:15:29,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:15:29,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:15:29,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:15:29,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:15:29,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:15:29,395 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:15:29,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:15:29,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:15:29,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:15:29,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:15:29,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:15:29,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 01:15:29,407 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 01:15:29,408 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 01:15:29,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:15:29,408 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:15:29,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:15:29,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:15:29,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:15:29,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:15:29,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:15:29,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:15:29,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:15:29,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:15:29,410 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 01:15:29,411 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 01:15:29,411 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:15:29,411 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:15:29,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:15:29,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 01:15:29,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-07-23 01:15:29,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:15:29,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:15:29,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:15:29,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:15:29,773 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:15:29,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-23 01:15:29,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b03b2f214/b62c60054d894be1a43a58a2353867a4/FLAGe63793a8f [2022-07-23 01:15:30,676 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:15:30,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-23 01:15:30,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b03b2f214/b62c60054d894be1a43a58a2353867a4/FLAGe63793a8f [2022-07-23 01:15:31,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b03b2f214/b62c60054d894be1a43a58a2353867a4 [2022-07-23 01:15:31,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:15:31,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:15:31,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:15:31,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:15:31,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:15:31,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:15:31" (1/1) ... [2022-07-23 01:15:31,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3355ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:31, skipping insertion in model container [2022-07-23 01:15:31,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:15:31" (1/1) ... [2022-07-23 01:15:31,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:15:31,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:15:34,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-23 01:15:34,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:15:34,536 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 01:15:34,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:15:34,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-23 01:15:35,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:15:35,034 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:15:35,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-23 01:15:35,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:15:35,670 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:15:35,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35 WrapperNode [2022-07-23 01:15:35,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:15:35,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:15:35,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:15:35,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:15:35,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:35,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,035 INFO L137 Inliner]: procedures = 494, calls = 3867, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7084 [2022-07-23 01:15:36,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:15:36,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:15:36,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:15:36,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:15:36,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:15:36,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:15:36,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:15:36,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:15:36,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (1/1) ... [2022-07-23 01:15:36,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:15:36,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:15:36,477 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) [2022-07-23 01:15:36,501 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 [2022-07-23 01:15:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-07-23 01:15:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-07-23 01:15:36,517 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-07-23 01:15:36,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-07-23 01:15:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-07-23 01:15:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-07-23 01:15:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:15:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:15:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:15:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:15:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-07-23 01:15:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-07-23 01:15:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-07-23 01:15:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-07-23 01:15:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-23 01:15:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-23 01:15:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-07-23 01:15:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-07-23 01:15:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-07-23 01:15:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-07-23 01:15:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-07-23 01:15:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-07-23 01:15:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-07-23 01:15:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-07-23 01:15:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-07-23 01:15:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-07-23 01:15:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-07-23 01:15:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-07-23 01:15:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-23 01:15:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-23 01:15:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-07-23 01:15:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-07-23 01:15:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 01:15:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 01:15:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-23 01:15:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-23 01:15:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2022-07-23 01:15:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2022-07-23 01:15:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-07-23 01:15:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-07-23 01:15:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:15:36,523 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-07-23 01:15:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-07-23 01:15:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-07-23 01:15:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-07-23 01:15:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 01:15:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 01:15:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 01:15:36,524 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 01:15:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 01:15:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-07-23 01:15:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-07-23 01:15:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-07-23 01:15:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-07-23 01:15:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-07-23 01:15:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-07-23 01:15:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-23 01:15:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-23 01:15:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-07-23 01:15:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-07-23 01:15:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2022-07-23 01:15:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2022-07-23 01:15:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-07-23 01:15:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-07-23 01:15:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:15:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:15:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-07-23 01:15:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-07-23 01:15:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-23 01:15:36,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-23 01:15:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-07-23 01:15:36,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-07-23 01:15:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-07-23 01:15:36,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-07-23 01:15:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-07-23 01:15:36,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-07-23 01:15:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-07-23 01:15:36,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-07-23 01:15:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-07-23 01:15:36,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-07-23 01:15:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-23 01:15:36,530 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-23 01:15:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-07-23 01:15:36,530 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-07-23 01:15:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:15:36,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:15:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-07-23 01:15:36,530 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-07-23 01:15:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:15:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-07-23 01:15:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-07-23 01:15:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-23 01:15:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-23 01:15:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:15:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:15:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 01:15:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 01:15:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 01:15:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-07-23 01:15:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-07-23 01:15:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-07-23 01:15:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-07-23 01:15:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-07-23 01:15:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-07-23 01:15:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-23 01:15:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-23 01:15:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 01:15:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 01:15:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-23 01:15:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-23 01:15:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 01:15:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2022-07-23 01:15:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2022-07-23 01:15:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-07-23 01:15:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-07-23 01:15:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:15:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:15:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-23 01:15:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-23 01:15:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-07-23 01:15:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-07-23 01:15:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 01:15:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-07-23 01:15:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-07-23 01:15:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 01:15:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 01:15:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-07-23 01:15:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-07-23 01:15:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-07-23 01:15:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-07-23 01:15:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 01:15:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 01:15:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:15:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 01:15:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:15:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:15:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:15:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-07-23 01:15:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-07-23 01:15:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-07-23 01:15:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-07-23 01:15:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-07-23 01:15:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-07-23 01:15:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-07-23 01:15:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-07-23 01:15:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-23 01:15:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-23 01:15:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-07-23 01:15:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-07-23 01:15:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-07-23 01:15:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-07-23 01:15:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-23 01:15:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-23 01:15:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-07-23 01:15:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-07-23 01:15:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 01:15:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 01:15:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:15:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:15:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-07-23 01:15:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-07-23 01:15:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-07-23 01:15:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-07-23 01:15:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-23 01:15:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-23 01:15:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:15:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:15:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-07-23 01:15:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-07-23 01:15:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-07-23 01:15:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-07-23 01:15:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-07-23 01:15:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-07-23 01:15:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 01:15:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 01:15:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-07-23 01:15:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-07-23 01:15:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-07-23 01:15:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-07-23 01:15:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-07-23 01:15:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-07-23 01:15:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-23 01:15:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-23 01:15:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-07-23 01:15:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-07-23 01:15:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:15:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 01:15:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 01:15:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-07-23 01:15:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-07-23 01:15:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-07-23 01:15:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-07-23 01:15:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-07-23 01:15:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-07-23 01:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-23 01:15:36,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-23 01:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-23 01:15:36,547 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-23 01:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 01:15:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 01:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 01:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 01:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-07-23 01:15:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-07-23 01:15:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-07-23 01:15:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-07-23 01:15:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-07-23 01:15:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-07-23 01:15:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-23 01:15:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-23 01:15:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 01:15:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 01:15:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-23 01:15:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-23 01:15:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-07-23 01:15:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-07-23 01:15:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-23 01:15:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-23 01:15:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-07-23 01:15:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-07-23 01:15:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-23 01:15:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-23 01:15:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-07-23 01:15:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-07-23 01:15:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-07-23 01:15:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-07-23 01:15:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-07-23 01:15:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-07-23 01:15:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-07-23 01:15:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-07-23 01:15:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-23 01:15:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-23 01:15:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-07-23 01:15:36,552 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-07-23 01:15:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-07-23 01:15:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-07-23 01:15:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-07-23 01:15:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-07-23 01:15:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-07-23 01:15:36,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-07-23 01:15:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:15:36,554 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:15:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-07-23 01:15:36,554 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-07-23 01:15:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 01:15:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 01:15:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 01:15:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 01:15:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:15:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:15:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-07-23 01:15:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-07-23 01:15:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-07-23 01:15:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-07-23 01:15:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-07-23 01:15:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-07-23 01:15:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-07-23 01:15:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-07-23 01:15:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-07-23 01:15:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-07-23 01:15:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-07-23 01:15:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-07-23 01:15:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-07-23 01:15:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-07-23 01:15:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-07-23 01:15:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-07-23 01:15:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-07-23 01:15:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-07-23 01:15:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-07-23 01:15:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-07-23 01:15:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-07-23 01:15:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-07-23 01:15:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-07-23 01:15:36,558 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-07-23 01:15:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-23 01:15:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-23 01:15:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-07-23 01:15:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-07-23 01:15:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-23 01:15:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-23 01:15:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-07-23 01:15:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-07-23 01:15:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-07-23 01:15:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-07-23 01:15:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-07-23 01:15:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-07-23 01:15:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-07-23 01:15:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-07-23 01:15:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-07-23 01:15:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-07-23 01:15:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-07-23 01:15:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-07-23 01:15:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-07-23 01:15:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-07-23 01:15:37,604 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:15:37,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:15:38,511 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:17:42,923 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:17:42,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:17:42,952 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:17:42,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:17:42 BoogieIcfgContainer [2022-07-23 01:17:42,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:17:42,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:17:42,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:17:42,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:17:42,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:15:31" (1/3) ... [2022-07-23 01:17:42,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb05db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:17:42, skipping insertion in model container [2022-07-23 01:17:42,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:15:35" (2/3) ... [2022-07-23 01:17:42,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb05db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:17:42, skipping insertion in model container [2022-07-23 01:17:42,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:17:42" (3/3) ... [2022-07-23 01:17:42,966 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-23 01:17:42,980 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:17:42,981 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:17:43,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:17:43,097 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@5380935f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3fe90325 [2022-07-23 01:17:43,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:17:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-07-23 01:17:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 01:17:43,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:17:43,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:17:43,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:17:43,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:17:43,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1765604170, now seen corresponding path program 1 times [2022-07-23 01:17:43,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:17:43,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873202944] [2022-07-23 01:17:43,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:17:43,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:17:43,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:17:43,153 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) [2022-07-23 01:17:43,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 01:17:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:17:44,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 01:17:44,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:17:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:17:44,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:17:44,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:17:44,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873202944] [2022-07-23 01:17:44,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873202944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:17:44,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:17:44,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:17:44,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155929728] [2022-07-23 01:17:44,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:17:44,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 01:17:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:17:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 01:17:44,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 01:17:44,445 INFO L87 Difference]: Start difference. First operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:17:44,674 INFO L93 Difference]: Finished difference Result 5079 states and 7591 transitions. [2022-07-23 01:17:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 01:17:44,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-23 01:17:44,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:17:44,712 INFO L225 Difference]: With dead ends: 5079 [2022-07-23 01:17:44,713 INFO L226 Difference]: Without dead ends: 2529 [2022-07-23 01:17:44,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 01:17:44,744 INFO L413 NwaCegarLoop]: 3650 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:17:44,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:17:44,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2022-07-23 01:17:44,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2529. [2022-07-23 01:17:44,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1702 states have (on average 1.3243243243243243) internal successors, (2254), 1741 states have internal predecessors, (2254), 695 states have call successors, (695), 132 states have call predecessors, (695), 131 states have return successors, (684), 680 states have call predecessors, (684), 684 states have call successors, (684) [2022-07-23 01:17:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3633 transitions. [2022-07-23 01:17:44,993 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3633 transitions. Word has length 35 [2022-07-23 01:17:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:17:44,994 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3633 transitions. [2022-07-23 01:17:44,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3633 transitions. [2022-07-23 01:17:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 01:17:44,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:17:44,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:17:45,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:17:45,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:17:45,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:17:45,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:17:45,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1899617676, now seen corresponding path program 1 times [2022-07-23 01:17:45,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:17:45,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389661298] [2022-07-23 01:17:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:17:45,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:17:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:17:45,226 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) [2022-07-23 01:17:45,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 01:17:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:17:46,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:17:46,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:17:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:17:46,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:17:46,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:17:46,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389661298] [2022-07-23 01:17:46,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389661298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:17:46,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:17:46,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:17:46,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076966248] [2022-07-23 01:17:46,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:17:46,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:17:46,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:17:46,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:17:46,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:46,560 INFO L87 Difference]: Start difference. First operand 2529 states and 3633 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:47,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:17:47,195 INFO L93 Difference]: Finished difference Result 7515 states and 10870 transitions. [2022-07-23 01:17:47,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:17:47,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-23 01:17:47,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:17:47,235 INFO L225 Difference]: With dead ends: 7515 [2022-07-23 01:17:47,236 INFO L226 Difference]: Without dead ends: 4994 [2022-07-23 01:17:47,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:47,257 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 3540 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:17:47,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 7968 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 01:17:47,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2022-07-23 01:17:47,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4972. [2022-07-23 01:17:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 3348 states have (on average 1.3255675029868579) internal successors, (4438), 3420 states have internal predecessors, (4438), 1366 states have call successors, (1366), 263 states have call predecessors, (1366), 257 states have return successors, (1380), 1338 states have call predecessors, (1380), 1355 states have call successors, (1380) [2022-07-23 01:17:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 7184 transitions. [2022-07-23 01:17:47,577 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 7184 transitions. Word has length 35 [2022-07-23 01:17:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:17:47,578 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 7184 transitions. [2022-07-23 01:17:47,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:47,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 7184 transitions. [2022-07-23 01:17:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 01:17:47,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:17:47,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:17:47,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:17:47,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:17:47,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:17:47,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:17:47,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2138293771, now seen corresponding path program 1 times [2022-07-23 01:17:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:17:47,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935238302] [2022-07-23 01:17:47,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:17:47,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:17:47,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:17:47,808 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) [2022-07-23 01:17:47,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 01:17:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:17:48,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:17:48,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:17:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:17:49,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:17:49,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:17:49,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935238302] [2022-07-23 01:17:49,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935238302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:17:49,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:17:49,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:17:49,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277590661] [2022-07-23 01:17:49,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:17:49,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:17:49,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:17:49,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:17:49,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:49,194 INFO L87 Difference]: Start difference. First operand 4972 states and 7184 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:17:49,861 INFO L93 Difference]: Finished difference Result 12447 states and 18110 transitions. [2022-07-23 01:17:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:17:49,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-07-23 01:17:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:17:49,923 INFO L225 Difference]: With dead ends: 12447 [2022-07-23 01:17:49,924 INFO L226 Difference]: Without dead ends: 7483 [2022-07-23 01:17:49,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:49,962 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 3608 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 7960 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:17:49,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 7960 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 01:17:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2022-07-23 01:17:50,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7461. [2022-07-23 01:17:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 5027 states have (on average 1.324447980903123) internal successors, (6658), 5128 states have internal predecessors, (6658), 2045 states have call successors, (2045), 394 states have call predecessors, (2045), 388 states have return successors, (2122), 2013 states have call predecessors, (2122), 2034 states have call successors, (2122) [2022-07-23 01:17:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 10825 transitions. [2022-07-23 01:17:50,381 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 10825 transitions. Word has length 36 [2022-07-23 01:17:50,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:17:50,382 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 10825 transitions. [2022-07-23 01:17:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 10825 transitions. [2022-07-23 01:17:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 01:17:50,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:17:50,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:17:50,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:17:50,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:17:50,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:17:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:17:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2064385685, now seen corresponding path program 1 times [2022-07-23 01:17:50,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:17:50,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84272394] [2022-07-23 01:17:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:17:50,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:17:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:17:50,607 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) [2022-07-23 01:17:50,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 01:17:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:17:51,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:17:51,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:17:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:17:51,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:17:51,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:17:51,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84272394] [2022-07-23 01:17:51,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84272394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:17:51,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:17:51,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:17:51,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618443345] [2022-07-23 01:17:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:17:51,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:17:51,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:17:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:17:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:51,924 INFO L87 Difference]: Start difference. First operand 7461 states and 10825 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:52,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:17:52,625 INFO L93 Difference]: Finished difference Result 17422 states and 25485 transitions. [2022-07-23 01:17:52,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:17:52,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-23 01:17:52,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:17:52,711 INFO L225 Difference]: With dead ends: 17422 [2022-07-23 01:17:52,711 INFO L226 Difference]: Without dead ends: 9969 [2022-07-23 01:17:52,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:52,767 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 3609 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 7961 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:17:52,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 7961 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 01:17:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2022-07-23 01:17:53,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9947. [2022-07-23 01:17:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9947 states, 6705 states have (on average 1.3237882177479492) internal successors, (8876), 6835 states have internal predecessors, (8876), 2722 states have call successors, (2722), 525 states have call predecessors, (2722), 519 states have return successors, (2887), 2686 states have call predecessors, (2887), 2711 states have call successors, (2887) [2022-07-23 01:17:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9947 states to 9947 states and 14485 transitions. [2022-07-23 01:17:53,299 INFO L78 Accepts]: Start accepts. Automaton has 9947 states and 14485 transitions. Word has length 37 [2022-07-23 01:17:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:17:53,300 INFO L495 AbstractCegarLoop]: Abstraction has 9947 states and 14485 transitions. [2022-07-23 01:17:53,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9947 states and 14485 transitions. [2022-07-23 01:17:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 01:17:53,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:17:53,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:17:53,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:17:53,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:17:53,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:17:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:17:53,524 INFO L85 PathProgramCache]: Analyzing trace with hash 267621922, now seen corresponding path program 1 times [2022-07-23 01:17:53,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:17:53,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261368054] [2022-07-23 01:17:53,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:17:53,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:17:53,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:17:53,527 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) [2022-07-23 01:17:53,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 01:17:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:17:54,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:17:54,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:17:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:17:54,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:17:54,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:17:54,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261368054] [2022-07-23 01:17:54,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261368054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:17:54,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:17:54,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:17:54,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843309395] [2022-07-23 01:17:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:17:54,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:17:54,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:17:54,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:17:54,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:54,803 INFO L87 Difference]: Start difference. First operand 9947 states and 14485 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:17:55,609 INFO L93 Difference]: Finished difference Result 22272 states and 32683 transitions. [2022-07-23 01:17:55,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:17:55,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-07-23 01:17:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:17:55,694 INFO L225 Difference]: With dead ends: 22272 [2022-07-23 01:17:55,694 INFO L226 Difference]: Without dead ends: 12333 [2022-07-23 01:17:55,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:55,748 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 3610 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3610 SdHoareTripleChecker+Valid, 7960 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:17:55,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3610 Valid, 7960 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 01:17:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12333 states. [2022-07-23 01:17:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12333 to 12311. [2022-07-23 01:17:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12311 states, 8301 states have (on average 1.3232140705939044) internal successors, (10984), 8457 states have internal predecessors, (10984), 3361 states have call successors, (3361), 654 states have call predecessors, (3361), 648 states have return successors, (3583), 3322 states have call predecessors, (3583), 3350 states have call successors, (3583) [2022-07-23 01:17:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12311 states to 12311 states and 17928 transitions. [2022-07-23 01:17:56,382 INFO L78 Accepts]: Start accepts. Automaton has 12311 states and 17928 transitions. Word has length 38 [2022-07-23 01:17:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:17:56,383 INFO L495 AbstractCegarLoop]: Abstraction has 12311 states and 17928 transitions. [2022-07-23 01:17:56,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 12311 states and 17928 transitions. [2022-07-23 01:17:56,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 01:17:56,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:17:56,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:17:56,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 01:17:56,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:17:56,599 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:17:56,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:17:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash 98713607, now seen corresponding path program 1 times [2022-07-23 01:17:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:17:56,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726262346] [2022-07-23 01:17:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:17:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:17:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:17:56,604 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) [2022-07-23 01:17:56,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 01:17:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:17:57,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:17:57,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:17:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:17:57,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:17:57,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:17:57,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726262346] [2022-07-23 01:17:57,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726262346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:17:57,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:17:57,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:17:57,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322314408] [2022-07-23 01:17:57,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:17:57,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:17:57,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:17:57,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:17:57,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:57,719 INFO L87 Difference]: Start difference. First operand 12311 states and 17928 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:17:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:17:58,903 INFO L93 Difference]: Finished difference Result 36838 states and 53658 transitions. [2022-07-23 01:17:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:17:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-07-23 01:17:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:17:59,086 INFO L225 Difference]: With dead ends: 36838 [2022-07-23 01:17:59,086 INFO L226 Difference]: Without dead ends: 24535 [2022-07-23 01:17:59,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:17:59,136 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 3591 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 8171 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:17:59,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 8171 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:17:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2022-07-23 01:18:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 24527. [2022-07-23 01:18:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24527 states, 16530 states have (on average 1.3225650332728374) internal successors, (21862), 16832 states have internal predecessors, (21862), 6700 states have call successors, (6700), 1307 states have call predecessors, (6700), 1296 states have return successors, (7155), 6633 states have call predecessors, (7155), 6689 states have call successors, (7155) [2022-07-23 01:18:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24527 states to 24527 states and 35717 transitions. [2022-07-23 01:18:00,699 INFO L78 Accepts]: Start accepts. Automaton has 24527 states and 35717 transitions. Word has length 36 [2022-07-23 01:18:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:00,700 INFO L495 AbstractCegarLoop]: Abstraction has 24527 states and 35717 transitions. [2022-07-23 01:18:00,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:00,700 INFO L276 IsEmpty]: Start isEmpty. Operand 24527 states and 35717 transitions. [2022-07-23 01:18:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 01:18:00,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:00,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:00,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:00,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:00,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1619670549, now seen corresponding path program 1 times [2022-07-23 01:18:00,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:00,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844608466] [2022-07-23 01:18:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:00,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:00,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:00,928 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) [2022-07-23 01:18:00,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 01:18:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:02,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:02,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:02,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:02,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:02,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844608466] [2022-07-23 01:18:02,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844608466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:02,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:02,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:18:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222783566] [2022-07-23 01:18:02,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:02,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:02,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:02,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:02,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:02,371 INFO L87 Difference]: Start difference. First operand 24527 states and 35717 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:03,029 INFO L93 Difference]: Finished difference Result 49026 states and 71375 transitions. [2022-07-23 01:18:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:03,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-07-23 01:18:03,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:03,259 INFO L225 Difference]: With dead ends: 49026 [2022-07-23 01:18:03,259 INFO L226 Difference]: Without dead ends: 24507 [2022-07-23 01:18:03,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:03,376 INFO L413 NwaCegarLoop]: 3628 mSDtfsCounter, 3618 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:03,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 3628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:03,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24507 states. [2022-07-23 01:18:04,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24507 to 24507. [2022-07-23 01:18:04,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24507 states, 16520 states have (on average 1.3221549636803873) internal successors, (21842), 16822 states have internal predecessors, (21842), 6690 states have call successors, (6690), 1307 states have call predecessors, (6690), 1296 states have return successors, (7125), 6623 states have call predecessors, (7125), 6679 states have call successors, (7125) [2022-07-23 01:18:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24507 states to 24507 states and 35657 transitions. [2022-07-23 01:18:04,727 INFO L78 Accepts]: Start accepts. Automaton has 24507 states and 35657 transitions. Word has length 38 [2022-07-23 01:18:04,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:04,729 INFO L495 AbstractCegarLoop]: Abstraction has 24507 states and 35657 transitions. [2022-07-23 01:18:04,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24507 states and 35657 transitions. [2022-07-23 01:18:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-23 01:18:04,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:04,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:04,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:04,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:04,953 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:04,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash 131108824, now seen corresponding path program 1 times [2022-07-23 01:18:04,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:04,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077161099] [2022-07-23 01:18:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:04,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:04,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:04,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:04,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 01:18:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:06,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:06,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:06,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:06,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:06,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077161099] [2022-07-23 01:18:06,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077161099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:06,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:06,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:18:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375293717] [2022-07-23 01:18:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:06,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:06,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:06,432 INFO L87 Difference]: Start difference. First operand 24507 states and 35657 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:07,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:07,136 INFO L93 Difference]: Finished difference Result 48986 states and 71255 transitions. [2022-07-23 01:18:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:07,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-23 01:18:07,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:07,259 INFO L225 Difference]: With dead ends: 48986 [2022-07-23 01:18:07,260 INFO L226 Difference]: Without dead ends: 24487 [2022-07-23 01:18:07,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:07,528 INFO L413 NwaCegarLoop]: 3624 mSDtfsCounter, 3613 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:07,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3613 Valid, 3624 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24487 states. [2022-07-23 01:18:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24487 to 24487. [2022-07-23 01:18:08,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24487 states, 16510 states have (on average 1.3217443973349485) internal successors, (21822), 16812 states have internal predecessors, (21822), 6680 states have call successors, (6680), 1307 states have call predecessors, (6680), 1296 states have return successors, (7095), 6613 states have call predecessors, (7095), 6669 states have call successors, (7095) [2022-07-23 01:18:08,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24487 states to 24487 states and 35597 transitions. [2022-07-23 01:18:08,697 INFO L78 Accepts]: Start accepts. Automaton has 24487 states and 35597 transitions. Word has length 39 [2022-07-23 01:18:08,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:08,698 INFO L495 AbstractCegarLoop]: Abstraction has 24487 states and 35597 transitions. [2022-07-23 01:18:08,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:08,698 INFO L276 IsEmpty]: Start isEmpty. Operand 24487 states and 35597 transitions. [2022-07-23 01:18:08,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 01:18:08,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:08,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:08,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:08,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:08,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1163074537, now seen corresponding path program 1 times [2022-07-23 01:18:08,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:08,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036623705] [2022-07-23 01:18:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:08,927 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:08,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 01:18:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:09,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:10,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:10,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:10,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:10,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036623705] [2022-07-23 01:18:10,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036623705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:10,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:10,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:18:10,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628662139] [2022-07-23 01:18:10,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:10,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:10,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:10,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:10,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:10,260 INFO L87 Difference]: Start difference. First operand 24487 states and 35597 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 01:18:11,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:11,607 INFO L93 Difference]: Finished difference Result 66377 states and 96024 transitions. [2022-07-23 01:18:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:11,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-07-23 01:18:11,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:11,913 INFO L225 Difference]: With dead ends: 66377 [2022-07-23 01:18:11,914 INFO L226 Difference]: Without dead ends: 41898 [2022-07-23 01:18:12,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:12,024 INFO L413 NwaCegarLoop]: 5069 mSDtfsCounter, 2567 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 8670 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:12,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 8670 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:18:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41898 states. [2022-07-23 01:18:13,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41898 to 41873. [2022-07-23 01:18:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41873 states, 28223 states have (on average 1.3192431704638061) internal successors, (37233), 28735 states have internal predecessors, (37233), 11275 states have call successors, (11275), 2395 states have call predecessors, (11275), 2374 states have return successors, (11890), 11154 states have call predecessors, (11890), 11264 states have call successors, (11890) [2022-07-23 01:18:13,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41873 states to 41873 states and 60398 transitions. [2022-07-23 01:18:13,828 INFO L78 Accepts]: Start accepts. Automaton has 41873 states and 60398 transitions. Word has length 41 [2022-07-23 01:18:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:13,828 INFO L495 AbstractCegarLoop]: Abstraction has 41873 states and 60398 transitions. [2022-07-23 01:18:13,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 01:18:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 41873 states and 60398 transitions. [2022-07-23 01:18:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-23 01:18:13,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:13,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:13,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:14,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:14,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:14,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1958220894, now seen corresponding path program 1 times [2022-07-23 01:18:14,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:14,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511957683] [2022-07-23 01:18:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:14,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:14,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:14,045 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:14,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 01:18:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:14,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:14,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:15,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:15,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:15,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511957683] [2022-07-23 01:18:15,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511957683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:15,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:15,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:18:15,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571109695] [2022-07-23 01:18:15,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:15,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:15,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:15,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:15,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:15,282 INFO L87 Difference]: Start difference. First operand 41873 states and 60398 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:16,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:16,669 INFO L93 Difference]: Finished difference Result 83698 states and 120687 transitions. [2022-07-23 01:18:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-23 01:18:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:17,001 INFO L225 Difference]: With dead ends: 83698 [2022-07-23 01:18:17,001 INFO L226 Difference]: Without dead ends: 41833 [2022-07-23 01:18:17,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:17,115 INFO L413 NwaCegarLoop]: 3620 mSDtfsCounter, 3608 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:17,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 3620 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41833 states. [2022-07-23 01:18:18,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41833 to 41833. [2022-07-23 01:18:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41833 states, 28203 states have (on average 1.3187604155586286) internal successors, (37193), 28715 states have internal predecessors, (37193), 11255 states have call successors, (11255), 2395 states have call predecessors, (11255), 2374 states have return successors, (11830), 11134 states have call predecessors, (11830), 11244 states have call successors, (11830) [2022-07-23 01:18:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41833 states to 41833 states and 60278 transitions. [2022-07-23 01:18:18,887 INFO L78 Accepts]: Start accepts. Automaton has 41833 states and 60278 transitions. Word has length 40 [2022-07-23 01:18:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:18,887 INFO L495 AbstractCegarLoop]: Abstraction has 41833 states and 60278 transitions. [2022-07-23 01:18:18,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 41833 states and 60278 transitions. [2022-07-23 01:18:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 01:18:18,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:18,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:18,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:19,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:19,089 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:19,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:19,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1463119151, now seen corresponding path program 1 times [2022-07-23 01:18:19,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:19,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928792690] [2022-07-23 01:18:19,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:19,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:19,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:19,091 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:19,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 01:18:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:19,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:19,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:20,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:20,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:20,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:20,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928792690] [2022-07-23 01:18:20,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928792690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:20,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:20,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:18:20,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982338189] [2022-07-23 01:18:20,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:20,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:20,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:20,360 INFO L87 Difference]: Start difference. First operand 41833 states and 60278 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:21,885 INFO L93 Difference]: Finished difference Result 83122 states and 119679 transitions. [2022-07-23 01:18:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:21,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-23 01:18:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:22,051 INFO L225 Difference]: With dead ends: 83122 [2022-07-23 01:18:22,051 INFO L226 Difference]: Without dead ends: 41297 [2022-07-23 01:18:22,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:22,174 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 3565 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:22,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 3578 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:22,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41297 states. [2022-07-23 01:18:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41297 to 41297. [2022-07-23 01:18:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41297 states, 27827 states have (on average 1.3165989865957524) internal successors, (36637), 28335 states have internal predecessors, (36637), 11115 states have call successors, (11115), 2375 states have call predecessors, (11115), 2354 states have return successors, (11638), 10998 states have call predecessors, (11638), 11104 states have call successors, (11638) [2022-07-23 01:18:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41297 states to 41297 states and 59390 transitions. [2022-07-23 01:18:23,804 INFO L78 Accepts]: Start accepts. Automaton has 41297 states and 59390 transitions. Word has length 41 [2022-07-23 01:18:23,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:23,805 INFO L495 AbstractCegarLoop]: Abstraction has 41297 states and 59390 transitions. [2022-07-23 01:18:23,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:23,805 INFO L276 IsEmpty]: Start isEmpty. Operand 41297 states and 59390 transitions. [2022-07-23 01:18:23,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-23 01:18:23,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:23,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:23,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:24,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:24,019 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:24,020 INFO L85 PathProgramCache]: Analyzing trace with hash 993998376, now seen corresponding path program 1 times [2022-07-23 01:18:24,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:24,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532301974] [2022-07-23 01:18:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:24,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:24,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:24,022 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:24,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 01:18:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:25,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:25,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:26,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:26,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:26,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532301974] [2022-07-23 01:18:26,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532301974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:26,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:26,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:18:26,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618932206] [2022-07-23 01:18:26,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:26,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:26,169 INFO L87 Difference]: Start difference. First operand 41297 states and 59390 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:27,082 INFO L93 Difference]: Finished difference Result 41299 states and 59391 transitions. [2022-07-23 01:18:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-23 01:18:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:27,254 INFO L225 Difference]: With dead ends: 41299 [2022-07-23 01:18:27,254 INFO L226 Difference]: Without dead ends: 41296 [2022-07-23 01:18:27,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:27,275 INFO L413 NwaCegarLoop]: 3576 mSDtfsCounter, 3540 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:27,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 3576 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:18:27,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41296 states. [2022-07-23 01:18:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41296 to 41296. [2022-07-23 01:18:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41296 states, 27827 states have (on average 1.3165630502749128) internal successors, (36636), 28334 states have internal predecessors, (36636), 11114 states have call successors, (11114), 2375 states have call predecessors, (11114), 2354 states have return successors, (11638), 10998 states have call predecessors, (11638), 11104 states have call successors, (11638) [2022-07-23 01:18:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41296 states to 41296 states and 59388 transitions. [2022-07-23 01:18:28,896 INFO L78 Accepts]: Start accepts. Automaton has 41296 states and 59388 transitions. Word has length 40 [2022-07-23 01:18:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:28,897 INFO L495 AbstractCegarLoop]: Abstraction has 41296 states and 59388 transitions. [2022-07-23 01:18:28,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 41296 states and 59388 transitions. [2022-07-23 01:18:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 01:18:28,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:28,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:28,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:29,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:29,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash 747995506, now seen corresponding path program 1 times [2022-07-23 01:18:29,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:29,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839353288] [2022-07-23 01:18:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:29,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:29,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:29,102 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:29,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 01:18:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:29,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:29,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:31,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:31,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:31,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839353288] [2022-07-23 01:18:31,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839353288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:31,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:31,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:18:31,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606983744] [2022-07-23 01:18:31,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:31,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:31,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:31,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:31,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:31,127 INFO L87 Difference]: Start difference. First operand 41296 states and 59388 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:32,414 INFO L93 Difference]: Finished difference Result 48114 states and 68097 transitions. [2022-07-23 01:18:32,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:32,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-23 01:18:32,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:32,615 INFO L225 Difference]: With dead ends: 48114 [2022-07-23 01:18:32,615 INFO L226 Difference]: Without dead ends: 48110 [2022-07-23 01:18:32,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:32,638 INFO L413 NwaCegarLoop]: 4087 mSDtfsCounter, 1067 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:32,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 7109 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:32,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48110 states. [2022-07-23 01:18:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48110 to 48106. [2022-07-23 01:18:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48106 states, 32312 states have (on average 1.303664273334984) internal successors, (42124), 32945 states have internal predecessors, (42124), 12694 states have call successors, (12694), 3120 states have call predecessors, (12694), 3099 states have return successors, (13252), 12580 states have call predecessors, (13252), 12686 states have call successors, (13252) [2022-07-23 01:18:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48106 states to 48106 states and 68070 transitions. [2022-07-23 01:18:34,489 INFO L78 Accepts]: Start accepts. Automaton has 48106 states and 68070 transitions. Word has length 41 [2022-07-23 01:18:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:34,490 INFO L495 AbstractCegarLoop]: Abstraction has 48106 states and 68070 transitions. [2022-07-23 01:18:34,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 48106 states and 68070 transitions. [2022-07-23 01:18:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-23 01:18:34,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:34,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:34,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:34,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:34,692 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1711845995, now seen corresponding path program 1 times [2022-07-23 01:18:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:34,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413511489] [2022-07-23 01:18:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:34,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:34,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:34,697 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:34,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 01:18:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:35,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:35,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:36,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:36,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:36,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413511489] [2022-07-23 01:18:36,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413511489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:36,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:36,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:18:36,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184390460] [2022-07-23 01:18:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:36,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:36,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:36,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:36,688 INFO L87 Difference]: Start difference. First operand 48106 states and 68070 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:37,878 INFO L93 Difference]: Finished difference Result 49400 states and 69256 transitions. [2022-07-23 01:18:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:37,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-07-23 01:18:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:38,265 INFO L225 Difference]: With dead ends: 49400 [2022-07-23 01:18:38,265 INFO L226 Difference]: Without dead ends: 49396 [2022-07-23 01:18:38,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:38,286 INFO L413 NwaCegarLoop]: 3587 mSDtfsCounter, 3213 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:38,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 3981 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49396 states. [2022-07-23 01:18:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49396 to 49392. [2022-07-23 01:18:39,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49392 states, 33214 states have (on average 1.2977961100740651) internal successors, (43105), 33845 states have internal predecessors, (43105), 12782 states have call successors, (12782), 3416 states have call predecessors, (12782), 3395 states have return successors, (13342), 12670 states have call predecessors, (13342), 12776 states have call successors, (13342) [2022-07-23 01:18:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49392 states to 49392 states and 69229 transitions. [2022-07-23 01:18:40,123 INFO L78 Accepts]: Start accepts. Automaton has 49392 states and 69229 transitions. Word has length 42 [2022-07-23 01:18:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:40,123 INFO L495 AbstractCegarLoop]: Abstraction has 49392 states and 69229 transitions. [2022-07-23 01:18:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 49392 states and 69229 transitions. [2022-07-23 01:18:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-23 01:18:40,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:40,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:40,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:40,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:40,330 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:40,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1526444949, now seen corresponding path program 1 times [2022-07-23 01:18:40,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:40,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978119402] [2022-07-23 01:18:40,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:40,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:40,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:40,334 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:40,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 01:18:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:41,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:41,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:42,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:42,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:42,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978119402] [2022-07-23 01:18:42,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978119402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:42,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:42,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:18:42,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022313128] [2022-07-23 01:18:42,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:42,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:42,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:42,387 INFO L87 Difference]: Start difference. First operand 49392 states and 69229 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:43,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:43,697 INFO L93 Difference]: Finished difference Result 50812 states and 70455 transitions. [2022-07-23 01:18:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-07-23 01:18:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:43,924 INFO L225 Difference]: With dead ends: 50812 [2022-07-23 01:18:43,925 INFO L226 Difference]: Without dead ends: 50808 [2022-07-23 01:18:43,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:43,961 INFO L413 NwaCegarLoop]: 3583 mSDtfsCounter, 3221 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:43,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 3920 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:18:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50808 states. [2022-07-23 01:18:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50808 to 50806. [2022-07-23 01:18:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50806 states, 34186 states have (on average 1.290118762066343) internal successors, (44104), 34815 states have internal predecessors, (44104), 12864 states have call successors, (12864), 3776 states have call predecessors, (12864), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-23 01:18:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50806 states to 50806 states and 70394 transitions. [2022-07-23 01:18:46,080 INFO L78 Accepts]: Start accepts. Automaton has 50806 states and 70394 transitions. Word has length 43 [2022-07-23 01:18:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:46,080 INFO L495 AbstractCegarLoop]: Abstraction has 50806 states and 70394 transitions. [2022-07-23 01:18:46,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 50806 states and 70394 transitions. [2022-07-23 01:18:46,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 01:18:46,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:46,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:46,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:46,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:46,282 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash 73984686, now seen corresponding path program 1 times [2022-07-23 01:18:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:46,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321171120] [2022-07-23 01:18:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:46,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:46,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:46,287 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:46,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 01:18:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:47,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:47,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:48,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:48,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:48,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321171120] [2022-07-23 01:18:48,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321171120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:48,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:48,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:18:48,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341065189] [2022-07-23 01:18:48,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:48,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:48,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:48,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:48,382 INFO L87 Difference]: Start difference. First operand 50806 states and 70394 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:18:49,620 INFO L93 Difference]: Finished difference Result 50808 states and 70395 transitions. [2022-07-23 01:18:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:18:49,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-07-23 01:18:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:18:49,835 INFO L225 Difference]: With dead ends: 50808 [2022-07-23 01:18:49,835 INFO L226 Difference]: Without dead ends: 50796 [2022-07-23 01:18:49,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:49,869 INFO L413 NwaCegarLoop]: 3563 mSDtfsCounter, 3522 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:18:49,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:18:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50796 states. [2022-07-23 01:18:51,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50796 to 50796. [2022-07-23 01:18:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50796 states, 34177 states have (on average 1.289317377183486) internal successors, (44065), 34805 states have internal predecessors, (44065), 12863 states have call successors, (12863), 3776 states have call predecessors, (12863), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-23 01:18:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50796 states to 50796 states and 70354 transitions. [2022-07-23 01:18:51,895 INFO L78 Accepts]: Start accepts. Automaton has 50796 states and 70354 transitions. Word has length 44 [2022-07-23 01:18:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:18:51,896 INFO L495 AbstractCegarLoop]: Abstraction has 50796 states and 70354 transitions. [2022-07-23 01:18:51,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 01:18:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 50796 states and 70354 transitions. [2022-07-23 01:18:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-23 01:18:51,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:18:51,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:18:51,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 01:18:52,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:18:52,099 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:18:52,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:18:52,100 INFO L85 PathProgramCache]: Analyzing trace with hash -879177529, now seen corresponding path program 1 times [2022-07-23 01:18:52,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:18:52,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440289693] [2022-07-23 01:18:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:18:52,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:18:52,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:18:52,103 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:18:52,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 01:18:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:18:52,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:18:52,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:18:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:18:53,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:18:53,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:18:53,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440289693] [2022-07-23 01:18:53,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440289693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:18:53,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:18:53,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:18:53,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420877852] [2022-07-23 01:18:53,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:18:53,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:18:53,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:18:53,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:18:53,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:18:53,082 INFO L87 Difference]: Start difference. First operand 50796 states and 70354 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)