./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-3598765 [2022-07-21 11:39:09,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:39:09,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:39:09,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:39:09,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:39:09,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:39:09,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:39:09,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:39:09,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:39:09,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:39:09,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:39:09,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:39:09,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:39:09,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:39:09,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:39:09,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:39:09,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:39:09,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:39:09,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:39:09,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:39:09,408 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:39:09,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:39:09,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:39:09,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:39:09,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:39:09,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:39:09,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:39:09,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:39:09,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:39:09,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:39:09,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:39:09,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:39:09,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:39:09,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:39:09,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:39:09,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:39:09,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:39:09,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:39:09,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:39:09,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:39:09,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:39:09,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:39:09,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:39:09,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:39:09,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:39:09,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:39:09,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:39:09,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:39:09,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:39:09,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:39:09,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:39:09,458 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:39:09,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:39:09,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:39:09,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:39:09,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:39:09,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:39:09,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:39:09,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:39:09,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:39:09,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:39:09,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:39:09,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:39:09,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:39:09,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:39:09,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:39:09,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:39:09,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-21 11:39:09,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:39:09,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:39:09,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:39:09,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:39:09,767 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:39:09,768 INFO L432 ainManager$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 [2022-07-21 11:39:09,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db9f9736/2bcfbdd299594974aeee9a7ade8a4769/FLAG7b03538be [2022-07-21 11:39:10,463 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:39:10,463 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 [2022-07-21 11:39:10,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db9f9736/2bcfbdd299594974aeee9a7ade8a4769/FLAG7b03538be [2022-07-21 11:39:10,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db9f9736/2bcfbdd299594974aeee9a7ade8a4769 [2022-07-21 11:39:10,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:39:10,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:39:10,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:39:10,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:39:10,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:39:10,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:10" (1/1) ... [2022-07-21 11:39:10,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6863213b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:10, skipping insertion in model container [2022-07-21 11:39:10,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:10" (1/1) ... [2022-07-21 11:39:10,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:39:10,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:39:12,408 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] [2022-07-21 11:39:12,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:39:12,474 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:39:12,671 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) [2022-07-21 11:39:12,677 INFO L158 Benchmark]: Toolchain (without parser) took 2087.47ms. Allocated memory was 67.1MB in the beginning and 123.7MB in the end (delta: 56.6MB). Free memory was 46.9MB in the beginning and 64.1MB in the end (delta: -17.2MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-07-21 11:39:12,678 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 49.6MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:39:12,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2085.04ms. Allocated memory was 67.1MB in the beginning and 123.7MB in the end (delta: 56.6MB). Free memory was 46.7MB in the beginning and 64.1MB in the end (delta: -17.4MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-07-21 11:39:12,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 49.6MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2085.04ms. Allocated memory was 67.1MB in the beginning and 123.7MB in the end (delta: 56.6MB). Free memory was 46.7MB in the beginning and 64.1MB in the end (delta: -17.4MB). Peak memory consumption was 69.8MB. 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-?-3598765 [2022-07-21 11:39:14,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:39:14,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:39:14,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:39:14,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:39:14,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:39:14,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:39:14,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:39:14,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:39:14,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:39:14,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:39:14,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:39:14,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:39:14,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:39:14,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:39:14,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:39:14,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:39:14,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:39:14,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:39:14,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:39:14,295 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:39:14,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:39:14,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:39:14,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:39:14,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:39:14,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:39:14,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:39:14,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:39:14,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:39:14,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:39:14,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:39:14,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:39:14,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:39:14,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:39:14,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:39:14,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:39:14,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:39:14,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:39:14,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:39:14,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:39:14,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:39:14,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:39:14,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:39:14,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:39:14,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:39:14,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:39:14,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:39:14,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:39:14,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:39:14,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:39:14,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:39:14,341 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:39:14,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:39:14,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:39:14,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:39:14,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:39:14,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:39:14,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:39:14,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:39:14,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:39:14,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:39:14,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:39:14,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:39:14,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:39:14,344 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:39:14,344 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:39:14,344 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:39:14,345 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:39:14,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:39:14,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:39:14,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-07-21 11:39:14,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:39:14,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:39:14,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:39:14,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:39:14,628 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:39:14,629 INFO L432 ainManager$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 [2022-07-21 11:39:14,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b137aa7c1/2931eab5f7c74a639fe2e1bbc5e75d07/FLAGbc5236e56 [2022-07-21 11:39:15,357 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:39:15,358 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 [2022-07-21 11:39:15,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b137aa7c1/2931eab5f7c74a639fe2e1bbc5e75d07/FLAGbc5236e56 [2022-07-21 11:39:15,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b137aa7c1/2931eab5f7c74a639fe2e1bbc5e75d07 [2022-07-21 11:39:15,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:39:15,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:39:15,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:39:15,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:39:15,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:39:15,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:15" (1/1) ... [2022-07-21 11:39:15,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220524af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15, skipping insertion in model container [2022-07-21 11:39:15,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:15" (1/1) ... [2022-07-21 11:39:15,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:39:15,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:39:17,664 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] [2022-07-21 11:39:17,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:39:17,718 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:39:17,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:39:18,031 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] [2022-07-21 11:39:18,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:39:18,087 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:39:18,328 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] [2022-07-21 11:39:18,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:39:18,496 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:39:18,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18 WrapperNode [2022-07-21 11:39:18,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:39:18,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:39:18,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:39:18,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:39:18,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,743 INFO L137 Inliner]: procedures = 396, calls = 2295, calls flagged for inlining = 189, calls inlined = 143, statements flattened = 4429 [2022-07-21 11:39:18,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:39:18,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:39:18,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:39:18,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:39:18,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:39:18,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:39:18,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:39:18,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:39:18,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (1/1) ... [2022-07-21 11:39:18,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:39:18,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:39:18,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:39:19,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:39:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 11:39:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 11:39:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-21 11:39:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-21 11:39:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-21 11:39:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-21 11:39:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 11:39:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 11:39:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-07-21 11:39:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-07-21 11:39:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 11:39:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 11:39:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-07-21 11:39:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-07-21 11:39:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-07-21 11:39:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-07-21 11:39:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:39:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:39:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:39:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:39:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-07-21 11:39:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-07-21 11:39:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-07-21 11:39:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-07-21 11:39:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 11:39:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 11:39:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:39:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:39:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 11:39:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 11:39:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-07-21 11:39:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-07-21 11:39:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:39:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:39:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 11:39:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 11:39:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unmap_page_2 [2022-07-21 11:39:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unmap_page_2 [2022-07-21 11:39:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 11:39:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 11:39:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 11:39:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 11:39:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:39:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 11:39:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 11:39:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-07-21 11:39:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-07-21 11:39:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-21 11:39:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-21 11:39:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:39:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:39:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:39:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:39:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:39:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-07-21 11:39:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-07-21 11:39:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-21 11:39:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-21 11:39:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-21 11:39:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-21 11:39:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-07-21 11:39:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-07-21 11:39:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_macaddr [2022-07-21 11:39:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_macaddr [2022-07-21 11:39:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:39:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:39:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:39:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:39:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:39:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:39:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-07-21 11:39:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-07-21 11:39:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:39:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:39:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-21 11:39:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-21 11:39:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 11:39:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 11:39:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_features [2022-07-21 11:39:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_features [2022-07-21 11:39:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:39:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:39:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-07-21 11:39:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-07-21 11:39:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-21 11:39:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-21 11:39:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-07-21 11:39:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-07-21 11:39:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-07-21 11:39:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-07-21 11:39:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-21 11:39:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-21 11:39:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 11:39:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 11:39:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:39:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2022-07-21 11:39:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2022-07-21 11:39:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-07-21 11:39:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-07-21 11:39:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:39:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:39:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:39:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:39:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-21 11:39:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-21 11:39:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:39:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:39:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:39:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-07-21 11:39:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-07-21 11:39:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-21 11:39:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-21 11:39:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 11:39:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 11:39:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 11:39:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 11:39:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 11:39:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 11:39:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:39:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-07-21 11:39:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:39:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure jme_change_mtu [2022-07-21 11:39:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_change_mtu [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-21 11:39:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-21 11:39:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 11:39:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 11:39:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure jme_ioctl [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_ioctl [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-07-21 11:39:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-07-21 11:39:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable_nosync [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable_nosync [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 11:39:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 11:39:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-21 11:39:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:39:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure jme_vlan_rx_register [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_vlan_rx_register [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:39:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:39:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 11:39:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 11:39:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fix_features [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fix_features [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 11:39:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_map_page_1 [2022-07-21 11:39:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_map_page_1 [2022-07-21 11:39:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-07-21 11:39:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-07-21 11:39:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-21 11:39:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-21 11:39:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-07-21 11:39:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-07-21 11:39:19,613 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:39:19,624 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:39:25,969 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:39:59,453 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:39:59,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:39:59,475 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-21 11:39:59,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:39:59 BoogieIcfgContainer [2022-07-21 11:39:59,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:39:59,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:39:59,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:39:59,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:39:59,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:39:15" (1/3) ... [2022-07-21 11:39:59,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a68a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:39:59, skipping insertion in model container [2022-07-21 11:39:59,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:18" (2/3) ... [2022-07-21 11:39:59,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a68a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:39:59, skipping insertion in model container [2022-07-21 11:39:59,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:39:59" (3/3) ... [2022-07-21 11:39:59,486 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:39:59,496 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:39:59,496 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:39:59,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:39:59,578 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@577e8247, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e02dc3b [2022-07-21 11:39:59,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:39:59,588 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) [2022-07-21 11:39:59,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-21 11:39:59,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:39:59,602 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] [2022-07-21 11:39:59,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:39:59,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:39:59,606 INFO L85 PathProgramCache]: Analyzing trace with hash 914134315, now seen corresponding path program 1 times [2022-07-21 11:39:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:39:59,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133525011] [2022-07-21 11:39:59,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:39:59,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:39:59,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:39:59,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:39:59,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:40:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:00,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:40:00,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-21 11:40:01,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:01,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:01,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133525011] [2022-07-21 11:40:01,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133525011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:01,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:01,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:40:01,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643192577] [2022-07-21 11:40:01,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:01,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:40:01,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:01,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:40:01,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:40:01,243 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) [2022-07-21 11:40:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:02,047 INFO L93 Difference]: Finished difference Result 3865 states and 5546 transitions. [2022-07-21 11:40:02,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:40:02,050 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 [2022-07-21 11:40:02,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:02,074 INFO L225 Difference]: With dead ends: 3865 [2022-07-21 11:40:02,074 INFO L226 Difference]: Without dead ends: 1911 [2022-07-21 11:40:02,084 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 [2022-07-21 11:40:02,087 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, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:40:02,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13560 Invalid, 60 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:40:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2022-07-21 11:40:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1911. [2022-07-21 11:40:02,182 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) [2022-07-21 11:40:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2702 transitions. [2022-07-21 11:40:02,195 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2702 transitions. Word has length 232 [2022-07-21 11:40:02,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:02,197 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2702 transitions. [2022-07-21 11:40:02,197 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) [2022-07-21 11:40:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2702 transitions. [2022-07-21 11:40:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 11:40:02,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:02,201 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] [2022-07-21 11:40:02,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:02,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:02,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:02,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:02,427 INFO L85 PathProgramCache]: Analyzing trace with hash -772722983, now seen corresponding path program 1 times [2022-07-21 11:40:02,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:02,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489014398] [2022-07-21 11:40:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:02,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:02,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:02,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:02,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:40:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:03,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:40:03,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-21 11:40:04,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:40:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-21 11:40:05,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:05,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489014398] [2022-07-21 11:40:05,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489014398] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:40:05,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:40:05,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-21 11:40:05,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277599793] [2022-07-21 11:40:05,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:40:05,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 11:40:05,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:05,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 11:40:05,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 11:40:05,437 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) [2022-07-21 11:40:06,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:06,359 INFO L93 Difference]: Finished difference Result 3804 states and 5381 transitions. [2022-07-21 11:40:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:40:06,360 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 [2022-07-21 11:40:06,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:06,373 INFO L225 Difference]: With dead ends: 3804 [2022-07-21 11:40:06,373 INFO L226 Difference]: Without dead ends: 1912 [2022-07-21 11:40:06,382 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 [2022-07-21 11:40:06,383 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 [2022-07-21 11:40:06,383 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] [2022-07-21 11:40:06,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-07-21 11:40:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2022-07-21 11:40:06,435 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) [2022-07-21 11:40:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2703 transitions. [2022-07-21 11:40:06,446 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2703 transitions. Word has length 237 [2022-07-21 11:40:06,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:06,448 INFO L495 AbstractCegarLoop]: Abstraction has 1912 states and 2703 transitions. [2022-07-21 11:40:06,448 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) [2022-07-21 11:40:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2703 transitions. [2022-07-21 11:40:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-21 11:40:06,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:06,452 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] [2022-07-21 11:40:06,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:06,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:06,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:06,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:06,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1055728149, now seen corresponding path program 2 times [2022-07-21 11:40:06,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:06,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619631341] [2022-07-21 11:40:06,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:40:06,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:06,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:06,671 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:06,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:40:07,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:40:07,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:40:07,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:40:07,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-07-21 11:40:07,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:07,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:07,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619631341] [2022-07-21 11:40:07,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619631341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:07,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:07,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:40:07,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811548838] [2022-07-21 11:40:07,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:07,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:40:07,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:40:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:40:07,604 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) [2022-07-21 11:40:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:07,881 INFO L93 Difference]: Finished difference Result 5629 states and 7962 transitions. [2022-07-21 11:40:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:40:07,882 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 [2022-07-21 11:40:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:07,902 INFO L225 Difference]: With dead ends: 5629 [2022-07-21 11:40:07,903 INFO L226 Difference]: Without dead ends: 3755 [2022-07-21 11:40:07,911 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 [2022-07-21 11:40:07,913 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 2605 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:40:07,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5905 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 11:40:07,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-21 11:40:08,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3752. [2022-07-21 11:40:08,017 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) [2022-07-21 11:40:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5307 transitions. [2022-07-21 11:40:08,039 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5307 transitions. Word has length 242 [2022-07-21 11:40:08,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:08,040 INFO L495 AbstractCegarLoop]: Abstraction has 3752 states and 5307 transitions. [2022-07-21 11:40:08,041 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) [2022-07-21 11:40:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5307 transitions. [2022-07-21 11:40:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-21 11:40:08,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:08,045 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] [2022-07-21 11:40:08,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:08,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:08,259 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1522031199, now seen corresponding path program 1 times [2022-07-21 11:40:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:08,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893210231] [2022-07-21 11:40:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:08,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:08,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:08,262 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:08,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:40:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:09,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:40:09,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-07-21 11:40:09,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:40:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-07-21 11:40:11,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:11,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893210231] [2022-07-21 11:40:11,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893210231] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:40:11,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:40:11,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-21 11:40:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001544248] [2022-07-21 11:40:11,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:40:11,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:40:11,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:40:11,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:40:11,706 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) [2022-07-21 11:40:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:12,832 INFO L93 Difference]: Finished difference Result 7489 states and 10595 transitions. [2022-07-21 11:40:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 11:40:12,833 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 [2022-07-21 11:40:12,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:12,851 INFO L225 Difference]: With dead ends: 7489 [2022-07-21 11:40:12,851 INFO L226 Difference]: Without dead ends: 3754 [2022-07-21 11:40:12,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:40:12,867 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 10 mSDsluCounter, 16127 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:40:12,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18820 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:40:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-07-21 11:40:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2022-07-21 11:40:12,955 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) [2022-07-21 11:40:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5309 transitions. [2022-07-21 11:40:12,972 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5309 transitions. Word has length 262 [2022-07-21 11:40:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:12,973 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5309 transitions. [2022-07-21 11:40:12,973 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) [2022-07-21 11:40:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5309 transitions. [2022-07-21 11:40:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-21 11:40:12,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:12,977 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] [2022-07-21 11:40:13,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:13,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:13,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:13,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1092106703, now seen corresponding path program 2 times [2022-07-21 11:40:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:13,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126736794] [2022-07-21 11:40:13,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:40:13,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:13,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:13,190 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:13,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:40:23,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 11:40:23,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:40:23,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:40:23,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-21 11:40:25,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:25,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:25,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126736794] [2022-07-21 11:40:25,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126736794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:25,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:25,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:40:25,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935779022] [2022-07-21 11:40:25,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:25,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:40:25,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:25,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:40:25,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:40:25,294 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) [2022-07-21 11:40:25,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:25,452 INFO L93 Difference]: Finished difference Result 3756 states and 5310 transitions. [2022-07-21 11:40:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:40:25,453 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 [2022-07-21 11:40:25,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:25,470 INFO L225 Difference]: With dead ends: 3756 [2022-07-21 11:40:25,470 INFO L226 Difference]: Without dead ends: 3753 [2022-07-21 11:40:25,473 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 [2022-07-21 11:40:25,474 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 [2022-07-21 11:40:25,474 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] [2022-07-21 11:40:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-21 11:40:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-21 11:40:25,600 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) [2022-07-21 11:40:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5307 transitions. [2022-07-21 11:40:25,616 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5307 transitions. Word has length 267 [2022-07-21 11:40:25,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:25,616 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5307 transitions. [2022-07-21 11:40:25,616 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) [2022-07-21 11:40:25,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5307 transitions. [2022-07-21 11:40:25,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-21 11:40:25,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:25,621 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] [2022-07-21 11:40:25,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:25,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:25,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:25,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash -505287589, now seen corresponding path program 1 times [2022-07-21 11:40:25,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:25,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152328325] [2022-07-21 11:40:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:25,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:25,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:25,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:25,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:40:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:27,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 11:40:27,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 236 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-07-21 11:40:27,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:40:29,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-07-21 11:40:29,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:29,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152328325] [2022-07-21 11:40:29,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152328325] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:40:29,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:40:29,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-21 11:40:29,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200867383] [2022-07-21 11:40:29,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:40:29,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 11:40:29,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:29,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 11:40:29,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:40:29,918 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) [2022-07-21 11:40:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:31,368 INFO L93 Difference]: Finished difference Result 7491 states and 10595 transitions. [2022-07-21 11:40:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:40:31,369 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 [2022-07-21 11:40:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:31,388 INFO L225 Difference]: With dead ends: 7491 [2022-07-21 11:40:31,388 INFO L226 Difference]: Without dead ends: 3755 [2022-07-21 11:40:31,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-07-21 11:40:31,434 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, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:40:31,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24179 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 11:40:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-07-21 11:40:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3755. [2022-07-21 11:40:31,532 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) [2022-07-21 11:40:31,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5309 transitions. [2022-07-21 11:40:31,545 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5309 transitions. Word has length 268 [2022-07-21 11:40:31,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:31,546 INFO L495 AbstractCegarLoop]: Abstraction has 3755 states and 5309 transitions. [2022-07-21 11:40:31,547 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) [2022-07-21 11:40:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5309 transitions. [2022-07-21 11:40:31,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-21 11:40:31,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:31,552 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] [2022-07-21 11:40:31,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:31,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:31,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:31,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:31,774 INFO L85 PathProgramCache]: Analyzing trace with hash -328377847, now seen corresponding path program 2 times [2022-07-21 11:40:31,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:31,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145459214] [2022-07-21 11:40:31,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:40:31,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:31,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:31,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:40:31,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:40:43,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 11:40:43,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:40:43,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:40:43,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-07-21 11:40:45,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:45,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:45,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145459214] [2022-07-21 11:40:45,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145459214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:45,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:45,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:40:45,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470690252] [2022-07-21 11:40:45,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:45,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:40:45,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:45,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:40:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:40:45,182 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) [2022-07-21 11:40:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:45,446 INFO L93 Difference]: Finished difference Result 11173 states and 15823 transitions. [2022-07-21 11:40:45,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:40:45,447 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 [2022-07-21 11:40:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:45,522 INFO L225 Difference]: With dead ends: 11173 [2022-07-21 11:40:45,522 INFO L226 Difference]: Without dead ends: 7450 [2022-07-21 11:40:45,533 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 [2022-07-21 11:40:45,534 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 [2022-07-21 11:40:45,534 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] [2022-07-21 11:40:45,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7450 states. [2022-07-21 11:40:45,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7445. [2022-07-21 11:40:45,712 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) [2022-07-21 11:40:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10538 transitions. [2022-07-21 11:40:45,737 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10538 transitions. Word has length 273 [2022-07-21 11:40:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:45,737 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10538 transitions. [2022-07-21 11:40:45,738 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) [2022-07-21 11:40:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10538 transitions. [2022-07-21 11:40:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-07-21 11:40:45,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:45,758 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] [2022-07-21 11:40:45,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:45,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:45,968 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1796727306, now seen corresponding path program 1 times [2022-07-21 11:40:45,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:45,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999336396] [2022-07-21 11:40:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:45,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:45,971 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) [2022-07-21 11:40:45,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:40:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:48,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:40:48,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-07-21 11:40:48,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:48,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999336396] [2022-07-21 11:40:48,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999336396] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:48,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:48,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:40:48,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704172025] [2022-07-21 11:40:48,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:40:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:48,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:40:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:40:48,719 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) [2022-07-21 11:40:49,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:49,664 INFO L93 Difference]: Finished difference Result 19843 states and 28038 transitions. [2022-07-21 11:40:49,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:40:49,665 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 [2022-07-21 11:40:49,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:49,717 INFO L225 Difference]: With dead ends: 19843 [2022-07-21 11:40:49,718 INFO L226 Difference]: Without dead ends: 12436 [2022-07-21 11:40:49,748 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 [2022-07-21 11:40:49,749 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:40:49,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 5584 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 11:40:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12436 states. [2022-07-21 11:40:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12436 to 12403. [2022-07-21 11:40:50,130 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) [2022-07-21 11:40:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 17517 transitions. [2022-07-21 11:40:50,170 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 17517 transitions. Word has length 476 [2022-07-21 11:40:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:50,172 INFO L495 AbstractCegarLoop]: Abstraction has 12403 states and 17517 transitions. [2022-07-21 11:40:50,172 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) [2022-07-21 11:40:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 17517 transitions. [2022-07-21 11:40:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2022-07-21 11:40:50,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:50,209 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] [2022-07-21 11:40:50,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:50,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:50,424 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:50,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1792837774, now seen corresponding path program 1 times [2022-07-21 11:40:50,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:50,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718638285] [2022-07-21 11:40:50,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:50,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:50,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:50,428 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) [2022-07-21 11:40:50,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:40:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:40:53,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 4881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:40:53,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:40:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12457 trivial. 0 not checked. [2022-07-21 11:40:54,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:40:54,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:40:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718638285] [2022-07-21 11:40:54,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718638285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:40:54,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:40:54,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:40:54,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318198785] [2022-07-21 11:40:54,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:40:54,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:40:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:40:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:40:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:40:54,098 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) [2022-07-21 11:40:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:40:55,024 INFO L93 Difference]: Finished difference Result 35147 states and 49473 transitions. [2022-07-21 11:40:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:40:55,025 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 [2022-07-21 11:40:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:40:55,100 INFO L225 Difference]: With dead ends: 35147 [2022-07-21 11:40:55,100 INFO L226 Difference]: Without dead ends: 22782 [2022-07-21 11:40:55,131 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 [2022-07-21 11:40:55,132 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 [2022-07-21 11:40:55,132 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] [2022-07-21 11:40:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22782 states. [2022-07-21 11:40:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22782 to 22769. [2022-07-21 11:40:56,085 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) [2022-07-21 11:40:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22769 states to 22769 states and 31989 transitions. [2022-07-21 11:40:56,203 INFO L78 Accepts]: Start accepts. Automaton has 22769 states and 31989 transitions. Word has length 1258 [2022-07-21 11:40:56,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:40:56,204 INFO L495 AbstractCegarLoop]: Abstraction has 22769 states and 31989 transitions. [2022-07-21 11:40:56,204 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) [2022-07-21 11:40:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 22769 states and 31989 transitions. [2022-07-21 11:40:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2022-07-21 11:40:56,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:40:56,231 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] [2022-07-21 11:40:56,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:40:56,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:40:56,449 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:40:56,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:40:56,449 INFO L85 PathProgramCache]: Analyzing trace with hash -346518197, now seen corresponding path program 1 times [2022-07-21 11:40:56,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:40:56,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377703905] [2022-07-21 11:40:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:40:56,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:40:56,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:40:56,453 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) [2022-07-21 11:40:56,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:41:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:00,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 5308 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:41:00,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:41:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 12891 trivial. 0 not checked. [2022-07-21 11:41:02,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:41:02,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:41:02,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377703905] [2022-07-21 11:41:02,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377703905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:02,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:02,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:41:02,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398871847] [2022-07-21 11:41:02,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:02,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:41:02,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:41:02,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:41:02,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:41:02,443 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) [2022-07-21 11:41:03,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:03,670 INFO L93 Difference]: Finished difference Result 56195 states and 79053 transitions. [2022-07-21 11:41:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:41:03,671 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 [2022-07-21 11:41:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:03,870 INFO L225 Difference]: With dead ends: 56195 [2022-07-21 11:41:03,870 INFO L226 Difference]: Without dead ends: 33474 [2022-07-21 11:41:03,930 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 [2022-07-21 11:41:03,931 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 [2022-07-21 11:41:03,931 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] [2022-07-21 11:41:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33474 states. [2022-07-21 11:41:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33474 to 33461. [2022-07-21 11:41:04,874 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) [2022-07-21 11:41:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 46947 transitions. [2022-07-21 11:41:04,994 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 46947 transitions. Word has length 1402 [2022-07-21 11:41:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:04,995 INFO L495 AbstractCegarLoop]: Abstraction has 33461 states and 46947 transitions. [2022-07-21 11:41:04,996 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) [2022-07-21 11:41:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 46947 transitions. [2022-07-21 11:41:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2022-07-21 11:41:05,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:05,135 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] [2022-07-21 11:41:05,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:41:05,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:41:05,355 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:05,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:05,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1316402270, now seen corresponding path program 1 times [2022-07-21 11:41:05,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:41:05,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478619750] [2022-07-21 11:41:05,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:05,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:41:05,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:41:05,359 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) [2022-07-21 11:41:05,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:41:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:09,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 5352 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-21 11:41:09,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:41:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 13988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13988 trivial. 0 not checked. [2022-07-21 11:41:10,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:41:10,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:41:10,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478619750] [2022-07-21 11:41:10,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478619750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:10,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:10,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:41:10,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196983465] [2022-07-21 11:41:10,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:10,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:41:10,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:41:10,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:41:10,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:41:10,206 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) [2022-07-21 11:41:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:12,876 INFO L93 Difference]: Finished difference Result 67034 states and 94259 transitions. [2022-07-21 11:41:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:41:12,877 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 [2022-07-21 11:41:12,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:13,016 INFO L225 Difference]: With dead ends: 67034 [2022-07-21 11:41:13,016 INFO L226 Difference]: Without dead ends: 33621 [2022-07-21 11:41:13,138 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 [2022-07-21 11:41:13,139 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:13,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18820 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 11:41:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33621 states. [2022-07-21 11:41:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33621 to 33509. [2022-07-21 11:41:14,113 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) [2022-07-21 11:41:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33509 states to 33509 states and 47011 transitions. [2022-07-21 11:41:14,240 INFO L78 Accepts]: Start accepts. Automaton has 33509 states and 47011 transitions. Word has length 1425 [2022-07-21 11:41:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:14,241 INFO L495 AbstractCegarLoop]: Abstraction has 33509 states and 47011 transitions. [2022-07-21 11:41:14,241 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) [2022-07-21 11:41:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 33509 states and 47011 transitions. [2022-07-21 11:41:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2022-07-21 11:41:14,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:14,278 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] [2022-07-21 11:41:14,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:41:14,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:41:14,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1415645786, now seen corresponding path program 1 times [2022-07-21 11:41:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:41:14,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576248953] [2022-07-21 11:41:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:14,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:41:14,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:41:14,508 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) [2022-07-21 11:41:14,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:41:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:19,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:41:19,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:41:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 2191 proven. 0 refuted. 0 times theorem prover too weak. 11796 trivial. 0 not checked. [2022-07-21 11:41:19,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:41:19,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:41:19,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576248953] [2022-07-21 11:41:19,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576248953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:19,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:19,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:41:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359847534] [2022-07-21 11:41:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:19,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:41:19,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:41:19,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:41:19,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:41:19,237 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) [2022-07-21 11:41:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:20,024 INFO L93 Difference]: Finished difference Result 67098 states and 94227 transitions. [2022-07-21 11:41:20,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:41:20,024 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 [2022-07-21 11:41:20,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:20,131 INFO L225 Difference]: With dead ends: 67098 [2022-07-21 11:41:20,131 INFO L226 Difference]: Without dead ends: 33637 [2022-07-21 11:41:20,306 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 [2022-07-21 11:41:20,307 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 [2022-07-21 11:41:20,307 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] [2022-07-21 11:41:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33637 states. [2022-07-21 11:41:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33637 to 33541. [2022-07-21 11:41:21,149 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) [2022-07-21 11:41:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33541 states to 33541 states and 47059 transitions. [2022-07-21 11:41:21,285 INFO L78 Accepts]: Start accepts. Automaton has 33541 states and 47059 transitions. Word has length 1428 [2022-07-21 11:41:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:21,286 INFO L495 AbstractCegarLoop]: Abstraction has 33541 states and 47059 transitions. [2022-07-21 11:41:21,286 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) [2022-07-21 11:41:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 33541 states and 47059 transitions. [2022-07-21 11:41:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-21 11:41:21,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:21,325 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] [2022-07-21 11:41:21,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 11:41:21,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:41:21,540 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash 201680618, now seen corresponding path program 1 times [2022-07-21 11:41:21,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:41:21,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052378865] [2022-07-21 11:41:21,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:21,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:41:21,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:41:21,545 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) [2022-07-21 11:41:21,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 11:41:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:26,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:41:26,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:41:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 3430 proven. 0 refuted. 0 times theorem prover too weak. 10556 trivial. 0 not checked. [2022-07-21 11:41:26,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:41:26,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:41:26,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052378865] [2022-07-21 11:41:26,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052378865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:26,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:26,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:41:26,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548405228] [2022-07-21 11:41:26,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:26,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:41:26,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:41:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:41:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:41:26,520 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) [2022-07-21 11:41:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:27,275 INFO L93 Difference]: Finished difference Result 67162 states and 94323 transitions. [2022-07-21 11:41:27,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:41:27,276 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 [2022-07-21 11:41:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:27,390 INFO L225 Difference]: With dead ends: 67162 [2022-07-21 11:41:27,390 INFO L226 Difference]: Without dead ends: 33669 [2022-07-21 11:41:27,574 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 [2022-07-21 11:41:27,575 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 [2022-07-21 11:41:27,578 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] [2022-07-21 11:41:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33669 states. [2022-07-21 11:41:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33669 to 33573. [2022-07-21 11:41:28,549 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) [2022-07-21 11:41:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33573 states to 33573 states and 47107 transitions. [2022-07-21 11:41:28,662 INFO L78 Accepts]: Start accepts. Automaton has 33573 states and 47107 transitions. Word has length 1427 [2022-07-21 11:41:28,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:28,663 INFO L495 AbstractCegarLoop]: Abstraction has 33573 states and 47107 transitions. [2022-07-21 11:41:28,663 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) [2022-07-21 11:41:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 33573 states and 47107 transitions. [2022-07-21 11:41:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-07-21 11:41:28,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:28,695 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] [2022-07-21 11:41:28,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 11:41:28,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:41:28,924 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:28,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2036392852, now seen corresponding path program 1 times [2022-07-21 11:41:28,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:41:28,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053337083] [2022-07-21 11:41:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:28,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:41:28,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:41:28,929 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) [2022-07-21 11:41:28,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 11:41:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:38,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:41:38,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:41:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 13294 trivial. 0 not checked. [2022-07-21 11:41:38,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:41:38,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:41:38,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053337083] [2022-07-21 11:41:38,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053337083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:38,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:38,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:41:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125752847] [2022-07-21 11:41:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:38,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:41:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:41:38,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:41:38,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:41:38,128 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) [2022-07-21 11:41:40,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:41:41,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:41,109 INFO L93 Difference]: Finished difference Result 67362 states and 94639 transitions. [2022-07-21 11:41:41,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:41:41,110 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 [2022-07-21 11:41:41,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:41,227 INFO L225 Difference]: With dead ends: 67362 [2022-07-21 11:41:41,227 INFO L226 Difference]: Without dead ends: 33837 [2022-07-21 11:41:41,321 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 [2022-07-21 11:41:41,322 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 [2022-07-21 11:41:41,322 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] [2022-07-21 11:41:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33837 states. [2022-07-21 11:41:42,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33837 to 33597. [2022-07-21 11:41:42,247 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) [2022-07-21 11:41:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33597 states to 33597 states and 47131 transitions. [2022-07-21 11:41:42,391 INFO L78 Accepts]: Start accepts. Automaton has 33597 states and 47131 transitions. Word has length 1427 [2022-07-21 11:41:42,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:42,392 INFO L495 AbstractCegarLoop]: Abstraction has 33597 states and 47131 transitions. [2022-07-21 11:41:42,393 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) [2022-07-21 11:41:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 33597 states and 47131 transitions. [2022-07-21 11:41:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2022-07-21 11:41:42,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:42,573 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] [2022-07-21 11:41:42,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 11:41:42,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:41:42,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:42,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:42,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1165066850, now seen corresponding path program 1 times [2022-07-21 11:41:42,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:41:42,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994619946] [2022-07-21 11:41:42,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:42,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:41:42,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:41:42,795 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) [2022-07-21 11:41:42,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 11:41:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:51,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 5512 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:41:51,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:41:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 15462 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 14713 trivial. 0 not checked. [2022-07-21 11:41:52,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:41:52,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:41:52,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994619946] [2022-07-21 11:41:52,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994619946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:52,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:52,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:41:52,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514129060] [2022-07-21 11:41:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:52,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:41:52,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:41:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:41:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:41:52,019 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) [2022-07-21 11:41:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:52,767 INFO L93 Difference]: Finished difference Result 67266 states and 94471 transitions. [2022-07-21 11:41:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:41:52,769 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 [2022-07-21 11:41:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:52,889 INFO L225 Difference]: With dead ends: 67266 [2022-07-21 11:41:52,889 INFO L226 Difference]: Without dead ends: 33717 [2022-07-21 11:41:52,974 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 [2022-07-21 11:41:52,974 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 [2022-07-21 11:41:52,975 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] [2022-07-21 11:41:52,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33717 states. [2022-07-21 11:41:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33717 to 33621. [2022-07-21 11:41:53,840 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) [2022-07-21 11:41:53,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33621 states to 33621 states and 47155 transitions. [2022-07-21 11:41:53,956 INFO L78 Accepts]: Start accepts. Automaton has 33621 states and 47155 transitions. Word has length 1479 [2022-07-21 11:41:53,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:53,957 INFO L495 AbstractCegarLoop]: Abstraction has 33621 states and 47155 transitions. [2022-07-21 11:41:53,958 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) [2022-07-21 11:41:53,958 INFO L276 IsEmpty]: Start isEmpty. Operand 33621 states and 47155 transitions. [2022-07-21 11:41:53,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-07-21 11:41:53,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:53,988 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] [2022-07-21 11:41:54,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 11:41:54,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:41:54,204 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:54,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash -710622717, now seen corresponding path program 1 times [2022-07-21 11:41:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:41:54,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840396566] [2022-07-21 11:41:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:54,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:41:54,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:41:54,208 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) [2022-07-21 11:41:54,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 11:42:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:03,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:42:03,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:42:04,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 805 proven. 1 refuted. 0 times theorem prover too weak. 16243 trivial. 0 not checked. [2022-07-21 11:42:04,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:42:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-07-21 11:42:05,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:42:05,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840396566] [2022-07-21 11:42:05,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840396566] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:42:05,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:42:05,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 11:42:05,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417572838] [2022-07-21 11:42:05,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:42:05,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:42:05,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:42:05,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:42:05,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:42:05,622 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) [2022-07-21 11:42:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:06,752 INFO L93 Difference]: Finished difference Result 67554 states and 94903 transitions. [2022-07-21 11:42:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:42:06,754 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 [2022-07-21 11:42:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:06,875 INFO L225 Difference]: With dead ends: 67554 [2022-07-21 11:42:06,875 INFO L226 Difference]: Without dead ends: 33981 [2022-07-21 11:42:06,960 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 [2022-07-21 11:42:06,962 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 [2022-07-21 11:42:06,962 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] [2022-07-21 11:42:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2022-07-21 11:42:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 33981. [2022-07-21 11:42:07,763 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) [2022-07-21 11:42:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33981 states to 33981 states and 47659 transitions. [2022-07-21 11:42:07,998 INFO L78 Accepts]: Start accepts. Automaton has 33981 states and 47659 transitions. Word has length 1528 [2022-07-21 11:42:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:07,999 INFO L495 AbstractCegarLoop]: Abstraction has 33981 states and 47659 transitions. [2022-07-21 11:42:08,000 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) [2022-07-21 11:42:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 33981 states and 47659 transitions. [2022-07-21 11:42:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1675 [2022-07-21 11:42:08,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:08,032 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] [2022-07-21 11:42:08,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-21 11:42:08,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:42:08,248 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:08,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:08,248 INFO L85 PathProgramCache]: Analyzing trace with hash -672348468, now seen corresponding path program 1 times [2022-07-21 11:42:08,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:42:08,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113995776] [2022-07-21 11:42:08,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:08,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:42:08,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:42:08,252 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) [2022-07-21 11:42:08,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 11:42:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:19,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 6066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:42:19,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:42:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 972 proven. 1 refuted. 0 times theorem prover too weak. 21538 trivial. 0 not checked. [2022-07-21 11:42:19,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:42:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22510 trivial. 0 not checked. [2022-07-21 11:42:21,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:42:21,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113995776] [2022-07-21 11:42:21,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113995776] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:42:21,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:42:21,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 11:42:21,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662222792] [2022-07-21 11:42:21,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:42:21,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:42:21,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:42:21,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:42:21,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:42:21,443 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) [2022-07-21 11:42:23,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:42:24,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:24,720 INFO L93 Difference]: Finished difference Result 69858 states and 98143 transitions. [2022-07-21 11:42:24,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:42:24,722 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 [2022-07-21 11:42:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:24,997 INFO L225 Difference]: With dead ends: 69858 [2022-07-21 11:42:24,998 INFO L226 Difference]: Without dead ends: 35925 [2022-07-21 11:42:25,088 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 [2022-07-21 11:42:25,089 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 [2022-07-21 11:42:25,090 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] [2022-07-21 11:42:25,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35925 states. [2022-07-21 11:42:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35925 to 35925. [2022-07-21 11:42:26,036 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) [2022-07-21 11:42:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35925 states to 35925 states and 50395 transitions. [2022-07-21 11:42:26,173 INFO L78 Accepts]: Start accepts. Automaton has 35925 states and 50395 transitions. Word has length 1674 [2022-07-21 11:42:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:26,174 INFO L495 AbstractCegarLoop]: Abstraction has 35925 states and 50395 transitions. [2022-07-21 11:42:26,174 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) [2022-07-21 11:42:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 35925 states and 50395 transitions. [2022-07-21 11:42:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2418 [2022-07-21 11:42:26,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:26,225 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] [2022-07-21 11:42:26,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-21 11:42:26,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:42:26,426 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:26,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:26,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1455561723, now seen corresponding path program 1 times [2022-07-21 11:42:26,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:42:26,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775592717] [2022-07-21 11:42:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:26,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:42:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:42:26,431 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) [2022-07-21 11:42:26,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-21 11:42:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:49,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 8194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:42:49,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:42:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 1812 proven. 574 refuted. 0 times theorem prover too weak. 63072 trivial. 0 not checked. [2022-07-21 11:42:51,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:42:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 64884 trivial. 0 not checked. [2022-07-21 11:42:54,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:42:54,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775592717] [2022-07-21 11:42:54,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775592717] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:42:54,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:42:54,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-21 11:42:54,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59541480] [2022-07-21 11:42:54,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:42:54,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 11:42:54,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:42:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 11:42:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-21 11:42:54,944 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) [2022-07-21 11:42:57,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:42:59,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:01,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:03,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:05,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:07,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:09,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:11,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:43:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:14,243 INFO L93 Difference]: Finished difference Result 74394 states and 104551 transitions. [2022-07-21 11:43:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:43:14,244 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 [2022-07-21 11:43:14,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:14,377 INFO L225 Difference]: With dead ends: 74394 [2022-07-21 11:43:14,377 INFO L226 Difference]: Without dead ends: 38517 [2022-07-21 11:43:14,469 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 [2022-07-21 11:43:14,470 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 63 mSDsluCounter, 21720 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 36 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 24480 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:14,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 24480 Invalid, 300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 256 Invalid, 8 Unknown, 0 Unchecked, 17.9s Time] [2022-07-21 11:43:14,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38517 states. [2022-07-21 11:43:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38517 to 38517. [2022-07-21 11:43:15,649 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) [2022-07-21 11:43:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38517 states to 38517 states and 54043 transitions. [2022-07-21 11:43:15,790 INFO L78 Accepts]: Start accepts. Automaton has 38517 states and 54043 transitions. Word has length 2417 [2022-07-21 11:43:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:15,792 INFO L495 AbstractCegarLoop]: Abstraction has 38517 states and 54043 transitions. [2022-07-21 11:43:15,793 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) [2022-07-21 11:43:15,793 INFO L276 IsEmpty]: Start isEmpty. Operand 38517 states and 54043 transitions. [2022-07-21 11:43:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3404 [2022-07-21 11:43:15,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:15,877 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] [2022-07-21 11:43:16,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:16,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:16,083 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:16,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1362127980, now seen corresponding path program 2 times [2022-07-21 11:43:16,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:16,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462730605] [2022-07-21 11:43:16,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:43:16,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:16,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:16,089 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) [2022-07-21 11:43:16,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process