./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:05:32,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:05:32,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:05:32,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:05:32,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:05:32,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:05:32,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:05:32,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:05:32,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:05:32,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:05:32,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:05:32,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:05:32,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:05:32,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:05:32,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:05:32,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:05:32,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:05:32,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:05:32,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:05:32,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:05:32,248 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:05:32,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:05:32,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:05:32,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:05:32,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:05:32,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:05:32,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:05:32,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:05:32,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:05:32,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:05:32,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:05:32,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:05:32,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:05:32,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:05:32,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:05:32,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:05:32,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:05:32,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:05:32,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:05:32,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:05:32,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:05:32,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:05:32,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:05:32,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:05:32,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:05:32,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:05:32,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:05:32,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:05:32,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:05:32,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:05:32,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:05:32,301 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:05:32,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:05:32,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:05:32,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:05:32,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:05:32,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:05:32,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:05:32,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:05:32,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:05:32,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:05:32,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:05:32,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:05:32,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:05:32,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:05:32,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:05:32,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:05:32,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:05:32,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:05:32,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:05:32,306 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:05:32,306 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:05:32,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:05:32,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-12 13:05:32,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:05:32,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:05:32,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:05:32,476 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:05:32,477 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:05:32,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-12 13:05:32,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf046d577/ba2ff3196d70429e8071da6d883b9e7e/FLAGe7a8d2360 [2022-07-12 13:05:33,164 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:05:33,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-12 13:05:33,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf046d577/ba2ff3196d70429e8071da6d883b9e7e/FLAGe7a8d2360 [2022-07-12 13:05:33,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf046d577/ba2ff3196d70429e8071da6d883b9e7e [2022-07-12 13:05:33,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:05:33,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:05:33,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:05:33,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:05:33,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:05:33,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:05:33" (1/1) ... [2022-07-12 13:05:33,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27637c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:33, skipping insertion in model container [2022-07-12 13:05:33,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:05:33" (1/1) ... [2022-07-12 13:05:33,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:05:33,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:05:35,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-12 13:05:35,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:05:35,337 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:05:35,494 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 13:05:35,502 INFO L158 Benchmark]: Toolchain (without parser) took 1938.33ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 82.7MB in the beginning and 112.7MB in the end (delta: -30.0MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-07-12 13:05:35,502 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:05:35,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1937.04ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 82.3MB in the beginning and 112.7MB in the end (delta: -30.4MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-07-12 13:05:35,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1937.04ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 82.3MB in the beginning and 112.7MB in the end (delta: -30.4MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = reg & 4043309055U [8018]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:05:37,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:05:37,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:05:37,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:05:37,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:05:37,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:05:37,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:05:37,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:05:37,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:05:37,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:05:37,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:05:37,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:05:37,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:05:37,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:05:37,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:05:37,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:05:37,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:05:37,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:05:37,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:05:37,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:05:37,348 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:05:37,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:05:37,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:05:37,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:05:37,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:05:37,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:05:37,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:05:37,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:05:37,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:05:37,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:05:37,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:05:37,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:05:37,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:05:37,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:05:37,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:05:37,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:05:37,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:05:37,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:05:37,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:05:37,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:05:37,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:05:37,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:05:37,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:05:37,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:05:37,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:05:37,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:05:37,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:05:37,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:05:37,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:05:37,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:05:37,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:05:37,400 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:05:37,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:05:37,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:05:37,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:05:37,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:05:37,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:05:37,401 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:05:37,401 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:05:37,402 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:05:37,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:05:37,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:05:37,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:05:37,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:05:37,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:05:37,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:05:37,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:05:37,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:05:37,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:05:37,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:05:37,403 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:05:37,404 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:05:37,404 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:05:37,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:05:37,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:05:37,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:05:37,404 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-12 13:05:37,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:05:37,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:05:37,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:05:37,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:05:37,675 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:05:37,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-12 13:05:37,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07081120e/5c2de6590bbf4385b1f0ed51e9414665/FLAGb76b29726 [2022-07-12 13:05:38,322 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:05:38,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-12 13:05:38,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07081120e/5c2de6590bbf4385b1f0ed51e9414665/FLAGb76b29726 [2022-07-12 13:05:38,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07081120e/5c2de6590bbf4385b1f0ed51e9414665 [2022-07-12 13:05:38,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:05:38,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:05:38,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:05:38,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:05:38,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:05:38,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:05:38" (1/1) ... [2022-07-12 13:05:38,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a94c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:38, skipping insertion in model container [2022-07-12 13:05:38,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:05:38" (1/1) ... [2022-07-12 13:05:38,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:05:38,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:05:40,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-12 13:05:40,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:05:40,221 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:05:40,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:05:40,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-12 13:05:40,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:05:40,539 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:05:40,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-07-12 13:05:40,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:05:40,879 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:05:40,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40 WrapperNode [2022-07-12 13:05:40,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:05:40,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:05:40,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:05:40,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:05:40,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:40,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,109 INFO L137 Inliner]: procedures = 396, calls = 2295, calls flagged for inlining = 189, calls inlined = 143, statements flattened = 4429 [2022-07-12 13:05:41,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:05:41,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:05:41,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:05:41,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:05:41,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:05:41,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:05:41,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:05:41,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:05:41,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (1/1) ... [2022-07-12 13:05:41,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:05:41,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:05:41,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:05:41,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:05:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 13:05:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 13:05:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-12 13:05:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-12 13:05:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-12 13:05:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-12 13:05:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 13:05:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 13:05:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-07-12 13:05:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-07-12 13:05:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:05:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:05:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-07-12 13:05:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-07-12 13:05:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-07-12 13:05:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-07-12 13:05:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 13:05:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 13:05:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:05:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:05:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-07-12 13:05:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-07-12 13:05:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-07-12 13:05:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-07-12 13:05:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 13:05:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 13:05:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 13:05:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 13:05:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 13:05:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 13:05:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-07-12 13:05:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-07-12 13:05:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:05:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:05:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 13:05:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 13:05:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unmap_page_2 [2022-07-12 13:05:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unmap_page_2 [2022-07-12 13:05:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 13:05:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 13:05:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 13:05:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 13:05:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:05:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 13:05:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 13:05:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-07-12 13:05:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-07-12 13:05:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-12 13:05:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-12 13:05:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:05:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:05:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 13:05:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 13:05:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 13:05:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-07-12 13:05:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-07-12 13:05:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-12 13:05:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-12 13:05:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-12 13:05:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-12 13:05:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-07-12 13:05:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-07-12 13:05:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_macaddr [2022-07-12 13:05:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_macaddr [2022-07-12 13:05:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 13:05:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 13:05:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 13:05:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 13:05:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 13:05:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 13:05:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-07-12 13:05:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-07-12 13:05:41,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:05:41,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:05:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-12 13:05:41,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-12 13:05:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 13:05:41,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 13:05:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_features [2022-07-12 13:05:41,349 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_features [2022-07-12 13:05:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 13:05:41,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 13:05:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-07-12 13:05:41,349 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-07-12 13:05:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-12 13:05:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-12 13:05:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-07-12 13:05:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-07-12 13:05:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-07-12 13:05:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-07-12 13:05:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-12 13:05:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-12 13:05:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:05:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:05:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:05:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2022-07-12 13:05:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2022-07-12 13:05:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-07-12 13:05:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-07-12 13:05:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:05:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 13:05:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-12 13:05:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-07-12 13:05:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-07-12 13:05:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-12 13:05:41,353 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-12 13:05:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 13:05:41,353 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 13:05:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 13:05:41,353 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 13:05:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 13:05:41,353 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 13:05:41,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:05:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-07-12 13:05:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-07-12 13:05:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:05:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:05:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure jme_change_mtu [2022-07-12 13:05:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_change_mtu [2022-07-12 13:05:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-12 13:05:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-12 13:05:41,354 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-12 13:05:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-12 13:05:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:05:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 13:05:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 13:05:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-07-12 13:05:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-07-12 13:05:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-07-12 13:05:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-07-12 13:05:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 13:05:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-07-12 13:05:41,356 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-07-12 13:05:41,356 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:05:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:05:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:05:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure jme_ioctl [2022-07-12 13:05:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_ioctl [2022-07-12 13:05:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-07-12 13:05:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-07-12 13:05:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-07-12 13:05:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-07-12 13:05:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-07-12 13:05:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-07-12 13:05:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 13:05:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 13:05:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable_nosync [2022-07-12 13:05:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable_nosync [2022-07-12 13:05:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:05:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:05:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-07-12 13:05:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-07-12 13:05:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-07-12 13:05:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-07-12 13:05:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-07-12 13:05:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-07-12 13:05:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-12 13:05:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-12 13:05:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 13:05:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 13:05:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:05:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:05:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:05:41,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:05:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 13:05:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 13:05:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-07-12 13:05:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-07-12 13:05:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 13:05:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 13:05:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:05:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 13:05:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 13:05:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-07-12 13:05:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-07-12 13:05:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-07-12 13:05:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 13:05:41,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:05:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:05:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-07-12 13:05:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-07-12 13:05:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-12 13:05:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-12 13:05:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 13:05:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 13:05:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-07-12 13:05:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-07-12 13:05:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-12 13:05:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-12 13:05:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-07-12 13:05:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-07-12 13:05:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure jme_vlan_rx_register [2022-07-12 13:05:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_vlan_rx_register [2022-07-12 13:05:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-07-12 13:05:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-07-12 13:05:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 13:05:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 13:05:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 13:05:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 13:05:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-07-12 13:05:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-07-12 13:05:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-07-12 13:05:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-07-12 13:05:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-07-12 13:05:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-07-12 13:05:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 13:05:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 13:05:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-12 13:05:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-12 13:05:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-07-12 13:05:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-07-12 13:05:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:05:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:05:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:05:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-07-12 13:05:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-07-12 13:05:41,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 13:05:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:05:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:05:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-07-12 13:05:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-07-12 13:05:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-07-12 13:05:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-07-12 13:05:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:05:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:05:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 13:05:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 13:05:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-07-12 13:05:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-07-12 13:05:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:05:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:05:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-07-12 13:05:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-07-12 13:05:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 13:05:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 13:05:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-12 13:05:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-12 13:05:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-07-12 13:05:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-07-12 13:05:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-07-12 13:05:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-07-12 13:05:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-07-12 13:05:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-07-12 13:05:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-07-12 13:05:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-07-12 13:05:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fix_features [2022-07-12 13:05:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fix_features [2022-07-12 13:05:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-07-12 13:05:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-07-12 13:05:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-07-12 13:05:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-07-12 13:05:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 13:05:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 13:05:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 13:05:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 13:05:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_map_page_1 [2022-07-12 13:05:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_map_page_1 [2022-07-12 13:05:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-07-12 13:05:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-07-12 13:05:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-12 13:05:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-12 13:05:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-07-12 13:05:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-07-12 13:05:41,922 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:05:41,925 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:05:48,145 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:06:21,709 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:06:21,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:06:21,719 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-12 13:06:21,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:06:21 BoogieIcfgContainer [2022-07-12 13:06:21,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:06:21,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:06:21,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:06:21,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:06:21,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:05:38" (1/3) ... [2022-07-12 13:06:21,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13305774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:06:21, skipping insertion in model container [2022-07-12 13:06:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:05:40" (2/3) ... [2022-07-12 13:06:21,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13305774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:06:21, skipping insertion in model container [2022-07-12 13:06:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:06:21" (3/3) ... [2022-07-12 13:06:21,727 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-12 13:06:21,735 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:06:21,736 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:06:21,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:06:21,800 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@1b09bc96, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@606362db [2022-07-12 13:06:21,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:06:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 1938 states, 1269 states have (on average 1.3152088258471237) internal successors, (1669), 1316 states have internal predecessors, (1669), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) [2022-07-12 13:06:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-12 13:06:21,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:21,833 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:21,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:21,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash 914134315, now seen corresponding path program 1 times [2022-07-12 13:06:21,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:21,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484279249] [2022-07-12 13:06:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:21,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:21,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:21,852 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:21,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:06:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:23,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:06:23,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-12 13:06:23,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:23,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:23,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484279249] [2022-07-12 13:06:23,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484279249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:23,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:23,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:06:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673455883] [2022-07-12 13:06:23,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:23,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:06:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:23,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:06:23,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:06:23,439 INFO L87 Difference]: Start difference. First operand has 1938 states, 1269 states have (on average 1.3152088258471237) internal successors, (1669), 1316 states have internal predecessors, (1669), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 13:06:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:24,205 INFO L93 Difference]: Finished difference Result 3865 states and 5546 transitions. [2022-07-12 13:06:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:06:24,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 232 [2022-07-12 13:06:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:24,225 INFO L225 Difference]: With dead ends: 3865 [2022-07-12 13:06:24,226 INFO L226 Difference]: Without dead ends: 1911 [2022-07-12 13:06:24,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:06:24,237 INFO L413 NwaCegarLoop]: 2716 mSDtfsCounter, 6 mSDsluCounter, 10844 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:24,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13560 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 13:06:24,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2022-07-12 13:06:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1911. [2022-07-12 13:06:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1250 states have (on average 1.3064) internal successors, (1633), 1286 states have internal predecessors, (1633), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-07-12 13:06:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2702 transitions. [2022-07-12 13:06:24,364 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2702 transitions. Word has length 232 [2022-07-12 13:06:24,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:24,366 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2702 transitions. [2022-07-12 13:06:24,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 13:06:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2702 transitions. [2022-07-12 13:06:24,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-12 13:06:24,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:24,369 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:24,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:24,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:24,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:24,585 INFO L85 PathProgramCache]: Analyzing trace with hash -772722983, now seen corresponding path program 1 times [2022-07-12 13:06:24,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:24,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162544149] [2022-07-12 13:06:24,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:24,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:24,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:24,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:24,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:06:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:25,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:06:25,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-12 13:06:26,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:06:27,508 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-12 13:06:27,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:27,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162544149] [2022-07-12 13:06:27,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162544149] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:06:27,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:06:27,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 13:06:27,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927771798] [2022-07-12 13:06:27,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:06:27,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 13:06:27,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:27,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 13:06:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:06:27,511 INFO L87 Difference]: Start difference. First operand 1911 states and 2702 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 13:06:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:28,400 INFO L93 Difference]: Finished difference Result 3804 states and 5381 transitions. [2022-07-12 13:06:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:06:28,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 237 [2022-07-12 13:06:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:28,413 INFO L225 Difference]: With dead ends: 3804 [2022-07-12 13:06:28,413 INFO L226 Difference]: Without dead ends: 1912 [2022-07-12 13:06:28,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:06:28,421 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 9 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16131 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:28,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16131 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 13:06:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-07-12 13:06:28,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2022-07-12 13:06:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1251 states have (on average 1.3061550759392486) internal successors, (1634), 1287 states have internal predecessors, (1634), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-07-12 13:06:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2703 transitions. [2022-07-12 13:06:28,524 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2703 transitions. Word has length 237 [2022-07-12 13:06:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:28,525 INFO L495 AbstractCegarLoop]: Abstraction has 1912 states and 2703 transitions. [2022-07-12 13:06:28,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 13:06:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2703 transitions. [2022-07-12 13:06:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-12 13:06:28,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:28,527 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:28,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:28,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:28,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1055728149, now seen corresponding path program 2 times [2022-07-12 13:06:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:28,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372872818] [2022-07-12 13:06:28,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:06:28,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:28,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:28,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:28,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:06:29,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:06:29,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:06:29,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:06:29,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-07-12 13:06:29,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:29,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:29,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372872818] [2022-07-12 13:06:29,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372872818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:29,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:29,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:06:29,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220362461] [2022-07-12 13:06:29,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:29,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:29,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:29,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:29,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:29,643 INFO L87 Difference]: Start difference. First operand 1912 states and 2703 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 13:06:29,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:29,974 INFO L93 Difference]: Finished difference Result 5629 states and 7962 transitions. [2022-07-12 13:06:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:29,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 242 [2022-07-12 13:06:29,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:29,991 INFO L225 Difference]: With dead ends: 5629 [2022-07-12 13:06:29,992 INFO L226 Difference]: Without dead ends: 3755 [2022-07-12 13:06:29,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:30,001 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 2605 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:30,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5905 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 13:06:30,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-12 13:06:30,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3752. [2022-07-12 13:06:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 2459 states have (on average 1.3094753965026433) internal successors, (3220), 2529 states have internal predecessors, (3220), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-12 13:06:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5307 transitions. [2022-07-12 13:06:30,136 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5307 transitions. Word has length 242 [2022-07-12 13:06:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:30,138 INFO L495 AbstractCegarLoop]: Abstraction has 3752 states and 5307 transitions. [2022-07-12 13:06:30,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 13:06:30,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5307 transitions. [2022-07-12 13:06:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-12 13:06:30,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:30,147 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:30,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-12 13:06:30,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:30,364 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:30,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1522031199, now seen corresponding path program 1 times [2022-07-12 13:06:30,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:30,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663786985] [2022-07-12 13:06:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:30,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:30,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:30,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:30,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:06:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:31,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 13:06:31,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-07-12 13:06:32,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:06:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-07-12 13:06:33,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:33,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663786985] [2022-07-12 13:06:33,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663786985] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:06:33,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:06:33,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 13:06:33,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692286173] [2022-07-12 13:06:33,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:06:33,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 13:06:33,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 13:06:33,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:06:33,807 INFO L87 Difference]: Start difference. First operand 3752 states and 5307 transitions. Second operand has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 13:06:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:34,983 INFO L93 Difference]: Finished difference Result 7489 states and 10595 transitions. [2022-07-12 13:06:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:06:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 262 [2022-07-12 13:06:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:35,003 INFO L225 Difference]: With dead ends: 7489 [2022-07-12 13:06:35,004 INFO L226 Difference]: Without dead ends: 3754 [2022-07-12 13:06:35,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:06:35,019 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 10 mSDsluCounter, 16127 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 18820 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:35,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 13:06:35,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-07-12 13:06:35,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2022-07-12 13:06:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2461 states have (on average 1.3092238927265338) internal successors, (3222), 2531 states have internal predecessors, (3222), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-12 13:06:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5309 transitions. [2022-07-12 13:06:35,125 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5309 transitions. Word has length 262 [2022-07-12 13:06:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:35,125 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5309 transitions. [2022-07-12 13:06:35,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 13:06:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5309 transitions. [2022-07-12 13:06:35,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-12 13:06:35,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:35,130 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:35,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 13:06:35,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:35,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:35,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:35,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1092106703, now seen corresponding path program 2 times [2022-07-12 13:06:35,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:35,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874647345] [2022-07-12 13:06:35,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:06:35,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:35,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:35,346 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:35,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:06:45,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 13:06:45,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:06:45,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:06:45,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-12 13:06:47,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:06:47,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:47,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874647345] [2022-07-12 13:06:47,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874647345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:06:47,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:06:47,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:06:47,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006255777] [2022-07-12 13:06:47,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:06:47,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:06:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:47,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:06:47,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:47,231 INFO L87 Difference]: Start difference. First operand 3754 states and 5309 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 13:06:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:47,370 INFO L93 Difference]: Finished difference Result 3756 states and 5310 transitions. [2022-07-12 13:06:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:06:47,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 267 [2022-07-12 13:06:47,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:47,387 INFO L225 Difference]: With dead ends: 3756 [2022-07-12 13:06:47,388 INFO L226 Difference]: Without dead ends: 3753 [2022-07-12 13:06:47,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:06:47,391 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2641 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:47,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 2698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:06:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-12 13:06:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-12 13:06:47,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2461 states have (on average 1.3088175538399025) internal successors, (3221), 2530 states have internal predecessors, (3221), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-12 13:06:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5307 transitions. [2022-07-12 13:06:47,507 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5307 transitions. Word has length 267 [2022-07-12 13:06:47,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:47,510 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5307 transitions. [2022-07-12 13:06:47,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 13:06:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5307 transitions. [2022-07-12 13:06:47,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-12 13:06:47,515 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:47,515 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:47,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:47,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:47,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash -505287589, now seen corresponding path program 1 times [2022-07-12 13:06:47,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610265527] [2022-07-12 13:06:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:06:47,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:47,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:47,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:47,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:06:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:06:48,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 13:06:48,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:06:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 236 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-07-12 13:06:49,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:06:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-12 13:06:51,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:06:51,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610265527] [2022-07-12 13:06:51,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610265527] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:06:51,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:06:51,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 13:06:51,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971552435] [2022-07-12 13:06:51,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:06:51,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 13:06:51,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:06:51,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 13:06:51,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:06:51,637 INFO L87 Difference]: Start difference. First operand 3753 states and 5307 transitions. Second operand has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 13:06:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:06:53,042 INFO L93 Difference]: Finished difference Result 7491 states and 10595 transitions. [2022-07-12 13:06:53,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:06:53,043 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 268 [2022-07-12 13:06:53,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:06:53,070 INFO L225 Difference]: With dead ends: 7491 [2022-07-12 13:06:53,070 INFO L226 Difference]: Without dead ends: 3755 [2022-07-12 13:06:53,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:06:53,081 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 11 mSDsluCounter, 21488 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24179 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:06:53,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24179 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 13:06:53,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-12 13:06:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3755. [2022-07-12 13:06:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 2463 states have (on average 1.3085667884693464) internal successors, (3223), 2532 states have internal predecessors, (3223), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-07-12 13:06:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5309 transitions. [2022-07-12 13:06:53,172 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5309 transitions. Word has length 268 [2022-07-12 13:06:53,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:06:53,173 INFO L495 AbstractCegarLoop]: Abstraction has 3755 states and 5309 transitions. [2022-07-12 13:06:53,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 13:06:53,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5309 transitions. [2022-07-12 13:06:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-12 13:06:53,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:06:53,178 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:06:53,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:06:53,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:06:53,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:06:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:06:53,396 INFO L85 PathProgramCache]: Analyzing trace with hash -328377847, now seen corresponding path program 2 times [2022-07-12 13:06:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:06:53,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944973640] [2022-07-12 13:06:53,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:06:53,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:06:53,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:06:53,399 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:06:53,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 13:07:05,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 13:07:05,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:07:05,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:05,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-07-12 13:07:06,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:06,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:06,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944973640] [2022-07-12 13:07:06,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944973640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:06,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:06,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:06,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801127510] [2022-07-12 13:07:06,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:06,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:06,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:06,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:06,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:06,671 INFO L87 Difference]: Start difference. First operand 3755 states and 5309 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 13:07:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:07,006 INFO L93 Difference]: Finished difference Result 11173 states and 15823 transitions. [2022-07-12 13:07:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:07:07,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 273 [2022-07-12 13:07:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:07,051 INFO L225 Difference]: With dead ends: 11173 [2022-07-12 13:07:07,051 INFO L226 Difference]: Without dead ends: 7450 [2022-07-12 13:07:07,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:07,064 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 2628 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:07,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 5949 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:07:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7450 states. [2022-07-12 13:07:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7445. [2022-07-12 13:07:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 4886 states have (on average 1.3100695865738845) internal successors, (6401), 5023 states have internal predecessors, (6401), 2067 states have call successors, (2067), 493 states have call predecessors, (2067), 491 states have return successors, (2070), 2024 states have call predecessors, (2070), 2064 states have call successors, (2070) [2022-07-12 13:07:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10538 transitions. [2022-07-12 13:07:07,282 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10538 transitions. Word has length 273 [2022-07-12 13:07:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:07,282 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10538 transitions. [2022-07-12 13:07:07,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 13:07:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10538 transitions. [2022-07-12 13:07:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-07-12 13:07:07,300 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:07,301 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:07,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:07:07,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:07,520 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:07,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:07,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1796727306, now seen corresponding path program 1 times [2022-07-12 13:07:07,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:07,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139176172] [2022-07-12 13:07:07,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:07,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:07,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:07,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:07:07,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 13:07:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:10,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:10,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-07-12 13:07:10,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:10,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:10,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139176172] [2022-07-12 13:07:10,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139176172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:10,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:10,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:10,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251412982] [2022-07-12 13:07:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:10,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:10,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:10,448 INFO L87 Difference]: Start difference. First operand 7445 states and 10538 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-12 13:07:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:11,421 INFO L93 Difference]: Finished difference Result 19843 states and 28038 transitions. [2022-07-12 13:07:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:07:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 476 [2022-07-12 13:07:11,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:11,470 INFO L225 Difference]: With dead ends: 19843 [2022-07-12 13:07:11,470 INFO L226 Difference]: Without dead ends: 12436 [2022-07-12 13:07:11,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:11,499 INFO L413 NwaCegarLoop]: 3053 mSDtfsCounter, 1838 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:11,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 5584 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 13:07:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12436 states. [2022-07-12 13:07:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12436 to 12403. [2022-07-12 13:07:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12403 states, 8154 states have (on average 1.3132205052734853) internal successors, (10708), 8395 states have internal predecessors, (10708), 3403 states have call successors, (3403), 847 states have call predecessors, (3403), 845 states have return successors, (3406), 3324 states have call predecessors, (3406), 3400 states have call successors, (3406) [2022-07-12 13:07:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 17517 transitions. [2022-07-12 13:07:11,865 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 17517 transitions. Word has length 476 [2022-07-12 13:07:11,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:11,866 INFO L495 AbstractCegarLoop]: Abstraction has 12403 states and 17517 transitions. [2022-07-12 13:07:11,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-12 13:07:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 17517 transitions. [2022-07-12 13:07:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2022-07-12 13:07:11,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:11,886 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:11,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 13:07:12,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:12,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1792837774, now seen corresponding path program 1 times [2022-07-12 13:07:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:12,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199495385] [2022-07-12 13:07:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:12,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:12,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:12,110 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) [2022-07-12 13:07:12,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 13:07:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:15,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 4881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:15,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 12457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12457 trivial. 0 not checked. [2022-07-12 13:07:15,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:15,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:15,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199495385] [2022-07-12 13:07:15,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199495385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:15,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:15,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518930504] [2022-07-12 13:07:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:15,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:15,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:15,908 INFO L87 Difference]: Start difference. First operand 12403 states and 17517 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-12 13:07:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:16,772 INFO L93 Difference]: Finished difference Result 35147 states and 49473 transitions. [2022-07-12 13:07:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:07:16,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 1258 [2022-07-12 13:07:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:16,898 INFO L225 Difference]: With dead ends: 35147 [2022-07-12 13:07:16,898 INFO L226 Difference]: Without dead ends: 22782 [2022-07-12 13:07:16,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:16,926 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 2411 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:16,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 5938 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 13:07:16,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22782 states. [2022-07-12 13:07:17,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22782 to 22769. [2022-07-12 13:07:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22769 states, 14930 states have (on average 1.302746148693905) internal successors, (19450), 15383 states have internal predecessors, (19450), 6265 states have call successors, (6265), 1575 states have call predecessors, (6265), 1573 states have return successors, (6274), 6110 states have call predecessors, (6274), 6262 states have call successors, (6274) [2022-07-12 13:07:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22769 states to 22769 states and 31989 transitions. [2022-07-12 13:07:17,605 INFO L78 Accepts]: Start accepts. Automaton has 22769 states and 31989 transitions. Word has length 1258 [2022-07-12 13:07:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:17,606 INFO L495 AbstractCegarLoop]: Abstraction has 22769 states and 31989 transitions. [2022-07-12 13:07:17,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-07-12 13:07:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 22769 states and 31989 transitions. [2022-07-12 13:07:17,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2022-07-12 13:07:17,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:17,631 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:17,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 13:07:17,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:17,856 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:17,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:17,857 INFO L85 PathProgramCache]: Analyzing trace with hash -346518197, now seen corresponding path program 1 times [2022-07-12 13:07:17,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:17,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873541906] [2022-07-12 13:07:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:17,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:17,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:17,869 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) [2022-07-12 13:07:17,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 13:07:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:21,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 5308 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:21,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 12891 trivial. 0 not checked. [2022-07-12 13:07:23,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:23,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:23,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873541906] [2022-07-12 13:07:23,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873541906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:23,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:23,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:23,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289821] [2022-07-12 13:07:23,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:23,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:23,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:23,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:23,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:23,612 INFO L87 Difference]: Start difference. First operand 22769 states and 31989 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-07-12 13:07:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:24,931 INFO L93 Difference]: Finished difference Result 56195 states and 79053 transitions. [2022-07-12 13:07:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:07:24,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) Word has length 1402 [2022-07-12 13:07:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:25,047 INFO L225 Difference]: With dead ends: 56195 [2022-07-12 13:07:25,048 INFO L226 Difference]: Without dead ends: 33474 [2022-07-12 13:07:25,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1401 GetRequests, 1400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:25,200 INFO L413 NwaCegarLoop]: 5042 mSDtfsCounter, 2405 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 7651 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:25,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 7651 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 13:07:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33474 states. [2022-07-12 13:07:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33474 to 33461. [2022-07-12 13:07:26,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33461 states, 22036 states have (on average 1.3015973860954801) internal successors, (28682), 22701 states have internal predecessors, (28682), 9125 states have call successors, (9125), 2301 states have call predecessors, (9125), 2299 states have return successors, (9140), 8894 states have call predecessors, (9140), 9122 states have call successors, (9140) [2022-07-12 13:07:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 46947 transitions. [2022-07-12 13:07:26,156 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 46947 transitions. Word has length 1402 [2022-07-12 13:07:26,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:26,157 INFO L495 AbstractCegarLoop]: Abstraction has 33461 states and 46947 transitions. [2022-07-12 13:07:26,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-07-12 13:07:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 46947 transitions. [2022-07-12 13:07:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2022-07-12 13:07:26,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:26,198 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:26,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 13:07:26,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:26,424 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:26,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1316402270, now seen corresponding path program 1 times [2022-07-12 13:07:26,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:26,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370901143] [2022-07-12 13:07:26,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:26,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:26,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:26,434 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) [2022-07-12 13:07:26,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 13:07:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:30,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 5352 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 13:07:30,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 13988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13988 trivial. 0 not checked. [2022-07-12 13:07:31,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:31,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:31,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370901143] [2022-07-12 13:07:31,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370901143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:31,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:31,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:07:31,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343649564] [2022-07-12 13:07:31,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:31,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:07:31,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:31,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:07:31,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:07:31,359 INFO L87 Difference]: Start difference. First operand 33461 states and 46947 transitions. Second operand has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-07-12 13:07:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:33,968 INFO L93 Difference]: Finished difference Result 67034 states and 94259 transitions. [2022-07-12 13:07:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:07:33,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) Word has length 1425 [2022-07-12 13:07:33,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:34,095 INFO L225 Difference]: With dead ends: 67034 [2022-07-12 13:07:34,096 INFO L226 Difference]: Without dead ends: 33621 [2022-07-12 13:07:34,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1418 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:07:34,175 INFO L413 NwaCegarLoop]: 2697 mSDtfsCounter, 12 mSDsluCounter, 16123 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18820 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:34,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18820 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 13:07:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33621 states. [2022-07-12 13:07:35,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33621 to 33509. [2022-07-12 13:07:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33509 states, 22068 states have (on average 1.3011600507522205) internal successors, (28714), 22717 states have internal predecessors, (28714), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-12 13:07:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33509 states to 33509 states and 47011 transitions. [2022-07-12 13:07:35,160 INFO L78 Accepts]: Start accepts. Automaton has 33509 states and 47011 transitions. Word has length 1425 [2022-07-12 13:07:35,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:35,160 INFO L495 AbstractCegarLoop]: Abstraction has 33509 states and 47011 transitions. [2022-07-12 13:07:35,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-07-12 13:07:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 33509 states and 47011 transitions. [2022-07-12 13:07:35,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2022-07-12 13:07:35,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:35,399 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:35,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 13:07:35,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:35,624 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:35,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1415645786, now seen corresponding path program 1 times [2022-07-12 13:07:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:35,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212383904] [2022-07-12 13:07:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:35,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:35,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:35,628 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) [2022-07-12 13:07:35,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 13:07:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:40,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:40,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 2191 proven. 0 refuted. 0 times theorem prover too weak. 11796 trivial. 0 not checked. [2022-07-12 13:07:40,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:40,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:40,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212383904] [2022-07-12 13:07:40,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212383904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:40,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:40,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:40,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788278935] [2022-07-12 13:07:40,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:40,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:40,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:40,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:40,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:40,241 INFO L87 Difference]: Start difference. First operand 33509 states and 47011 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-12 13:07:40,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:40,964 INFO L93 Difference]: Finished difference Result 67098 states and 94227 transitions. [2022-07-12 13:07:40,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:07:40,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1428 [2022-07-12 13:07:40,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:41,069 INFO L225 Difference]: With dead ends: 67098 [2022-07-12 13:07:41,070 INFO L226 Difference]: Without dead ends: 33637 [2022-07-12 13:07:41,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:41,153 INFO L413 NwaCegarLoop]: 2699 mSDtfsCounter, 3 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:41,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5392 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:07:41,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33637 states. [2022-07-12 13:07:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33637 to 33541. [2022-07-12 13:07:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33541 states, 22100 states have (on average 1.3014479638009049) internal successors, (28762), 22749 states have internal predecessors, (28762), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-12 13:07:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33541 states to 33541 states and 47059 transitions. [2022-07-12 13:07:42,439 INFO L78 Accepts]: Start accepts. Automaton has 33541 states and 47059 transitions. Word has length 1428 [2022-07-12 13:07:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:42,440 INFO L495 AbstractCegarLoop]: Abstraction has 33541 states and 47059 transitions. [2022-07-12 13:07:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-12 13:07:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 33541 states and 47059 transitions. [2022-07-12 13:07:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-12 13:07:42,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:42,472 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:42,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-12 13:07:42,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:42,700 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:42,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:42,700 INFO L85 PathProgramCache]: Analyzing trace with hash 201680618, now seen corresponding path program 1 times [2022-07-12 13:07:42,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:42,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924124475] [2022-07-12 13:07:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:42,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:42,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:42,710 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) [2022-07-12 13:07:42,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 13:07:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:47,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:47,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 3430 proven. 0 refuted. 0 times theorem prover too weak. 10556 trivial. 0 not checked. [2022-07-12 13:07:47,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:47,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:47,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924124475] [2022-07-12 13:07:47,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924124475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:47,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:47,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929682165] [2022-07-12 13:07:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:47,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:47,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:47,643 INFO L87 Difference]: Start difference. First operand 33541 states and 47059 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-12 13:07:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:07:48,410 INFO L93 Difference]: Finished difference Result 67162 states and 94323 transitions. [2022-07-12 13:07:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:07:48,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1427 [2022-07-12 13:07:48,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:07:48,610 INFO L225 Difference]: With dead ends: 67162 [2022-07-12 13:07:48,611 INFO L226 Difference]: Without dead ends: 33669 [2022-07-12 13:07:48,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:48,698 INFO L413 NwaCegarLoop]: 2701 mSDtfsCounter, 3 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:07:48,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5395 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:07:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33669 states. [2022-07-12 13:07:49,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33669 to 33573. [2022-07-12 13:07:49,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33573 states, 22132 states have (on average 1.301735044279776) internal successors, (28810), 22781 states have internal predecessors, (28810), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-12 13:07:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33573 states to 33573 states and 47107 transitions. [2022-07-12 13:07:49,697 INFO L78 Accepts]: Start accepts. Automaton has 33573 states and 47107 transitions. Word has length 1427 [2022-07-12 13:07:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:07:49,698 INFO L495 AbstractCegarLoop]: Abstraction has 33573 states and 47107 transitions. [2022-07-12 13:07:49,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-12 13:07:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 33573 states and 47107 transitions. [2022-07-12 13:07:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-12 13:07:49,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:07:49,728 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:07:49,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 13:07:49,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:07:49,952 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:07:49,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:07:49,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2036392852, now seen corresponding path program 1 times [2022-07-12 13:07:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:07:49,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494758008] [2022-07-12 13:07:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:07:49,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:07:49,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:07:49,956 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) [2022-07-12 13:07:49,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 13:07:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:07:58,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:07:58,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:07:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 13294 trivial. 0 not checked. [2022-07-12 13:07:59,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:07:59,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:07:59,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494758008] [2022-07-12 13:07:59,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494758008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:07:59,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:07:59,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:07:59,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298598919] [2022-07-12 13:07:59,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:07:59,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:07:59,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:07:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:07:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:07:59,055 INFO L87 Difference]: Start difference. First operand 33573 states and 47107 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-12 13:08:01,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:08:01,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:08:01,918 INFO L93 Difference]: Finished difference Result 67362 states and 94639 transitions. [2022-07-12 13:08:01,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:08:01,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 1427 [2022-07-12 13:08:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:08:02,029 INFO L225 Difference]: With dead ends: 67362 [2022-07-12 13:08:02,029 INFO L226 Difference]: Without dead ends: 33837 [2022-07-12 13:08:02,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:08:02,198 INFO L413 NwaCegarLoop]: 2700 mSDtfsCounter, 7 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:08:02,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5393 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 13:08:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33837 states. [2022-07-12 13:08:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33837 to 33597. [2022-07-12 13:08:02,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33597 states, 22156 states have (on average 1.3014081964253474) internal successors, (28834), 22805 states have internal predecessors, (28834), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-12 13:08:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33597 states to 33597 states and 47131 transitions. [2022-07-12 13:08:03,241 INFO L78 Accepts]: Start accepts. Automaton has 33597 states and 47131 transitions. Word has length 1427 [2022-07-12 13:08:03,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:08:03,243 INFO L495 AbstractCegarLoop]: Abstraction has 33597 states and 47131 transitions. [2022-07-12 13:08:03,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-12 13:08:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 33597 states and 47131 transitions. [2022-07-12 13:08:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2022-07-12 13:08:03,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:08:03,311 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 47, 47, 31, 31, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:08:03,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-12 13:08:03,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:08:03,528 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:08:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:08:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1165066850, now seen corresponding path program 1 times [2022-07-12 13:08:03,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:08:03,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849784796] [2022-07-12 13:08:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:08:03,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:08:03,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:08:03,532 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) [2022-07-12 13:08:03,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 13:08:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:08:12,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 5512 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:08:12,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:08:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 15462 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 14713 trivial. 0 not checked. [2022-07-12 13:08:12,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:08:12,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:08:12,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849784796] [2022-07-12 13:08:12,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849784796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:08:12,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:08:12,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:08:12,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708092237] [2022-07-12 13:08:12,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:08:12,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:08:12,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:08:12,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:08:12,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:08:12,747 INFO L87 Difference]: Start difference. First operand 33597 states and 47131 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-07-12 13:08:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:08:13,715 INFO L93 Difference]: Finished difference Result 67266 states and 94471 transitions. [2022-07-12 13:08:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:08:13,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 1479 [2022-07-12 13:08:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:08:13,826 INFO L225 Difference]: With dead ends: 67266 [2022-07-12 13:08:13,826 INFO L226 Difference]: Without dead ends: 33717 [2022-07-12 13:08:13,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1477 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:08:13,905 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5390 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:08:13,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:08:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33717 states. [2022-07-12 13:08:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33717 to 33621. [2022-07-12 13:08:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33621 states, 22180 states have (on average 1.3010820559062217) internal successors, (28858), 22829 states have internal predecessors, (28858), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-07-12 13:08:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33621 states to 33621 states and 47155 transitions. [2022-07-12 13:08:15,013 INFO L78 Accepts]: Start accepts. Automaton has 33621 states and 47155 transitions. Word has length 1479 [2022-07-12 13:08:15,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:08:15,015 INFO L495 AbstractCegarLoop]: Abstraction has 33621 states and 47155 transitions. [2022-07-12 13:08:15,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-07-12 13:08:15,015 INFO L276 IsEmpty]: Start isEmpty. Operand 33621 states and 47155 transitions. [2022-07-12 13:08:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-07-12 13:08:15,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:08:15,051 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 49, 49, 33, 33, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:08:15,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 13:08:15,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:08:15,280 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:08:15,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:08:15,281 INFO L85 PathProgramCache]: Analyzing trace with hash -710622717, now seen corresponding path program 1 times [2022-07-12 13:08:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:08:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538124161] [2022-07-12 13:08:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:08:15,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:08:15,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:08:15,284 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) [2022-07-12 13:08:15,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 13:08:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:08:25,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:08:25,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:08:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 805 proven. 1 refuted. 0 times theorem prover too weak. 16243 trivial. 0 not checked. [2022-07-12 13:08:25,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:08:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-07-12 13:08:26,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:08:26,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538124161] [2022-07-12 13:08:26,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538124161] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:08:26,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:08:26,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 13:08:26,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105034336] [2022-07-12 13:08:26,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:08:26,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:08:26,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:08:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:08:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:08:26,867 INFO L87 Difference]: Start difference. First operand 33621 states and 47155 transitions. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-07-12 13:08:27,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:08:27,867 INFO L93 Difference]: Finished difference Result 67554 states and 94903 transitions. [2022-07-12 13:08:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:08:27,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) Word has length 1528 [2022-07-12 13:08:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:08:27,972 INFO L225 Difference]: With dead ends: 67554 [2022-07-12 13:08:27,972 INFO L226 Difference]: Without dead ends: 33981 [2022-07-12 13:08:28,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3055 GetRequests, 3050 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:08:28,051 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 10 mSDsluCounter, 5382 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:08:28,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8086 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 13:08:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2022-07-12 13:08:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 33981. [2022-07-12 13:08:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33981 states, 22396 states have (on average 1.2981782461153777) internal successors, (29074), 23045 states have internal predecessors, (29074), 9285 states have call successors, (9285), 2301 states have call predecessors, (9285), 2299 states have return successors, (9300), 9054 states have call predecessors, (9300), 9282 states have call successors, (9300) [2022-07-12 13:08:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33981 states to 33981 states and 47659 transitions. [2022-07-12 13:08:28,981 INFO L78 Accepts]: Start accepts. Automaton has 33981 states and 47659 transitions. Word has length 1528 [2022-07-12 13:08:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:08:28,982 INFO L495 AbstractCegarLoop]: Abstraction has 33981 states and 47659 transitions. [2022-07-12 13:08:28,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-07-12 13:08:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 33981 states and 47659 transitions. [2022-07-12 13:08:29,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1675 [2022-07-12 13:08:29,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:08:29,013 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 55, 55, 39, 39, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:08:29,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 13:08:29,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:08:29,230 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:08:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:08:29,230 INFO L85 PathProgramCache]: Analyzing trace with hash -672348468, now seen corresponding path program 1 times [2022-07-12 13:08:29,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:08:29,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927500695] [2022-07-12 13:08:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:08:29,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:08:29,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:08:29,234 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) [2022-07-12 13:08:29,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 13:08:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:08:40,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 6066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:08:40,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:08:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 972 proven. 1 refuted. 0 times theorem prover too weak. 21538 trivial. 0 not checked. [2022-07-12 13:08:41,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:08:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22510 trivial. 0 not checked. [2022-07-12 13:08:43,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:08:43,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927500695] [2022-07-12 13:08:43,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927500695] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:08:43,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:08:43,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 13:08:43,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775572590] [2022-07-12 13:08:43,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:08:43,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:08:43,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:08:43,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:08:43,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:08:43,141 INFO L87 Difference]: Start difference. First operand 33981 states and 47659 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-07-12 13:08:45,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:08:46,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:08:46,444 INFO L93 Difference]: Finished difference Result 69858 states and 98143 transitions. [2022-07-12 13:08:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:08:46,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 1674 [2022-07-12 13:08:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:08:46,693 INFO L225 Difference]: With dead ends: 69858 [2022-07-12 13:08:46,693 INFO L226 Difference]: Without dead ends: 35925 [2022-07-12 13:08:46,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3347 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:08:46,767 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 35 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8108 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:08:46,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 8108 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 13:08:46,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35925 states. [2022-07-12 13:08:47,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35925 to 35925. [2022-07-12 13:08:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35925 states, 23620 states have (on average 1.285774767146486) internal successors, (30370), 24269 states have internal predecessors, (30370), 10005 states have call successors, (10005), 2301 states have call predecessors, (10005), 2299 states have return successors, (10020), 9774 states have call predecessors, (10020), 10002 states have call successors, (10020) [2022-07-12 13:08:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35925 states to 35925 states and 50395 transitions. [2022-07-12 13:08:47,786 INFO L78 Accepts]: Start accepts. Automaton has 35925 states and 50395 transitions. Word has length 1674 [2022-07-12 13:08:47,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:08:47,787 INFO L495 AbstractCegarLoop]: Abstraction has 35925 states and 50395 transitions. [2022-07-12 13:08:47,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-07-12 13:08:47,787 INFO L276 IsEmpty]: Start isEmpty. Operand 35925 states and 50395 transitions. [2022-07-12 13:08:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2418 [2022-07-12 13:08:47,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:08:47,833 INFO L195 NwaCegarLoop]: trace histogram [138, 138, 85, 85, 69, 69, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:08:47,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 13:08:48,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:08:48,048 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:08:48,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:08:48,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1455561723, now seen corresponding path program 1 times [2022-07-12 13:08:48,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:08:48,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683362189] [2022-07-12 13:08:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:08:48,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:08:48,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:08:48,053 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:08:48,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 13:09:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:09:10,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 8194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:09:11,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:09:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 1812 proven. 574 refuted. 0 times theorem prover too weak. 63072 trivial. 0 not checked. [2022-07-12 13:09:12,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:09:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 64884 trivial. 0 not checked. [2022-07-12 13:09:16,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:09:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683362189] [2022-07-12 13:09:16,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683362189] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:09:16,822 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:09:16,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-12 13:09:16,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574689] [2022-07-12 13:09:16,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:09:16,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 13:09:16,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:09:16,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 13:09:16,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:09:16,825 INFO L87 Difference]: Start difference. First operand 35925 states and 50395 transitions. Second operand has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) [2022-07-12 13:09:18,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:20,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:22,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:24,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:26,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:28,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:30,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:32,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:09:36,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:09:36,032 INFO L93 Difference]: Finished difference Result 74394 states and 104551 transitions. [2022-07-12 13:09:36,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:09:36,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) Word has length 2417 [2022-07-12 13:09:36,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:09:36,162 INFO L225 Difference]: With dead ends: 74394 [2022-07-12 13:09:36,162 INFO L226 Difference]: Without dead ends: 38517 [2022-07-12 13:09:36,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4834 GetRequests, 4822 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:09:36,242 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 63 mSDsluCounter, 21720 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 36 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 24480 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:09:36,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 24480 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 256 Invalid, 8 Unknown, 0 Unchecked, 18.0s Time] [2022-07-12 13:09:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38517 states. [2022-07-12 13:09:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38517 to 38517. [2022-07-12 13:09:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38517 states, 25252 states have (on average 1.2711072390305718) internal successors, (32098), 25901 states have internal predecessors, (32098), 10965 states have call successors, (10965), 2301 states have call predecessors, (10965), 2299 states have return successors, (10980), 10734 states have call predecessors, (10980), 10962 states have call successors, (10980) [2022-07-12 13:09:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38517 states to 38517 states and 54043 transitions. [2022-07-12 13:09:37,712 INFO L78 Accepts]: Start accepts. Automaton has 38517 states and 54043 transitions. Word has length 2417 [2022-07-12 13:09:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:09:37,729 INFO L495 AbstractCegarLoop]: Abstraction has 38517 states and 54043 transitions. [2022-07-12 13:09:37,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) [2022-07-12 13:09:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 38517 states and 54043 transitions. [2022-07-12 13:09:37,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3404 [2022-07-12 13:09:37,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:09:37,862 INFO L195 NwaCegarLoop]: trace histogram [218, 218, 125, 125, 109, 109, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 32, 32, 32, 32, 32, 32, 32, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:09:38,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 13:09:38,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:09:38,081 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:09:38,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:09:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1362127980, now seen corresponding path program 2 times [2022-07-12 13:09:38,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:09:38,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512291664] [2022-07-12 13:09:38,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:09:38,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:09:38,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:09:38,086 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 13:09:38,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process