./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:39:36,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:39:36,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:39:36,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:39:36,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:39:36,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:39:36,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:39:36,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:39:36,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:39:36,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:39:36,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:39:36,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:39:36,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:39:36,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:39:36,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:39:36,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:39:36,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:39:36,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:39:36,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:39:36,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:39:36,431 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:39:36,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:39:36,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:39:36,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:39:36,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:39:36,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:39:36,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:39:36,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:39:36,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:39:36,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:39:36,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:39:36,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:39:36,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:39:36,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:39:36,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:39:36,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:39:36,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:39:36,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:39:36,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:39:36,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:39:36,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:39:36,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:39:36,453 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:39:36,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:39:36,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:39:36,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:39:36,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:39:36,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:39:36,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:39:36,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:39:36,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:39:36,477 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:39:36,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:39:36,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:39:36,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:39:36,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:39:36,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:39:36,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:39:36,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:39:36,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:39:36,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:39:36,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:39:36,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:39:36,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:39:36,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:39:36,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:39:36,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:39:36,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:39:36,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:39:36,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:39:36,480 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:39:36,481 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:39:36,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:39:36,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-12 12:39:36,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:39:36,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:39:36,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:39:36,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:39:36,679 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:39:36,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 12:39:36,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1401613d9/9e52d350b46b4fc0b037317b3b5174c0/FLAG3ab1ba30b [2022-07-12 12:39:37,471 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:39:37,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 12:39:37,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1401613d9/9e52d350b46b4fc0b037317b3b5174c0/FLAG3ab1ba30b [2022-07-12 12:39:37,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1401613d9/9e52d350b46b4fc0b037317b3b5174c0 [2022-07-12 12:39:37,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:39:37,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:39:37,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:39:37,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:39:37,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:39:37,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:39:37" (1/1) ... [2022-07-12 12:39:37,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7357251f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:37, skipping insertion in model container [2022-07-12 12:39:37,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:39:37" (1/1) ... [2022-07-12 12:39:37,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:39:37,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:39:38,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-12 12:39:40,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:39:40,411 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:39:40,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-12 12:39:40,568 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) 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:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 12:39:40,577 INFO L158 Benchmark]: Toolchain (without parser) took 2805.04ms. Allocated memory was 94.4MB in the beginning and 199.2MB in the end (delta: 104.9MB). Free memory was 63.0MB in the beginning and 102.0MB in the end (delta: -39.0MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-07-12 12:39:40,578 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:39:40,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2802.20ms. Allocated memory was 94.4MB in the beginning and 199.2MB in the end (delta: 104.9MB). Free memory was 62.7MB in the beginning and 102.0MB in the end (delta: -39.3MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2022-07-12 12:39:40,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2802.20ms. Allocated memory was 94.4MB in the beginning and 199.2MB in the end (delta: 104.9MB). Free memory was 62.7MB in the beginning and 102.0MB in the end (delta: -39.3MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:39:42,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:39:42,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:39:42,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:39:42,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:39:42,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:39:42,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:39:42,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:39:42,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:39:42,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:39:42,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:39:42,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:39:42,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:39:42,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:39:42,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:39:42,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:39:42,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:39:42,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:39:42,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:39:42,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:39:42,251 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:39:42,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:39:42,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:39:42,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:39:42,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:39:42,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:39:42,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:39:42,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:39:42,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:39:42,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:39:42,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:39:42,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:39:42,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:39:42,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:39:42,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:39:42,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:39:42,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:39:42,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:39:42,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:39:42,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:39:42,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:39:42,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:39:42,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:39:42,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:39:42,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:39:42,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:39:42,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:39:42,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:39:42,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:39:42,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:39:42,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:39:42,299 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:39:42,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:39:42,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:39:42,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:39:42,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:39:42,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:39:42,300 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:39:42,301 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:39:42,301 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:39:42,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:39:42,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:39:42,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:39:42,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:39:42,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:39:42,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:39:42,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:39:42,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:39:42,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:39:42,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:39:42,303 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:39:42,303 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:39:42,303 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:39:42,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:39:42,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:39:42,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:39:42,304 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-12 12:39:42,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:39:42,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:39:42,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:39:42,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:39:42,581 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:39:42,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 12:39:42,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c398f791/d5e6f7c2b1bb44bd855106472ec46484/FLAG28eb374f0 [2022-07-12 12:39:43,434 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:39:43,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 12:39:43,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c398f791/d5e6f7c2b1bb44bd855106472ec46484/FLAG28eb374f0 [2022-07-12 12:39:43,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c398f791/d5e6f7c2b1bb44bd855106472ec46484 [2022-07-12 12:39:43,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:39:43,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:39:43,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:39:43,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:39:43,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:39:43,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:39:43" (1/1) ... [2022-07-12 12:39:43,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba7d3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:43, skipping insertion in model container [2022-07-12 12:39:43,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:39:43" (1/1) ... [2022-07-12 12:39:43,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:39:43,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:39:44,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-12 12:39:45,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:39:45,988 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:39:46,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:39:46,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-12 12:39:46,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:39:46,448 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:39:46,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-12 12:39:46,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:39:46,931 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:39:46,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46 WrapperNode [2022-07-12 12:39:46,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:39:46,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:39:46,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:39:46,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:39:46,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,300 INFO L137 Inliner]: procedures = 451, calls = 5982, calls flagged for inlining = 178, calls inlined = 156, statements flattened = 7209 [2022-07-12 12:39:47,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:39:47,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:39:47,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:39:47,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:39:47,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:39:47,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:39:47,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:39:47,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:39:47,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (1/1) ... [2022-07-12 12:39:47,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:39:47,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:39:47,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 12:39:47,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 12:39:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-12 12:39:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-12 12:39:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-12 12:39:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-12 12:39:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 12:39:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 12:39:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 12:39:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-12 12:39:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-12 12:39:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 12:39:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 12:39:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:39:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:39:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:39:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:39:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-12 12:39:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-12 12:39:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:39:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:39:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 12:39:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 12:39:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:39:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:39:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-12 12:39:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-12 12:39:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-12 12:39:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-12 12:39:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-12 12:39:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-12 12:39:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:39:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:39:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 12:39:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 12:39:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 12:39:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 12:39:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-12 12:39:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-12 12:39:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:39:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:39:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 12:39:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 12:39:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:39:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 12:39:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:39:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:39:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:39:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 12:39:47,617 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 12:39:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:39:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:39:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-12 12:39:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-12 12:39:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-12 12:39:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-12 12:39:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 12:39:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 12:39:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:39:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:39:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-12 12:39:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-12 12:39:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:39:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:39:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-12 12:39:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-12 12:39:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:39:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:39:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:39:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:39:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-12 12:39:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-12 12:39:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 12:39:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:39:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:39:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 12:39:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 12:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:39:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 12:39:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 12:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-12 12:39:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-12 12:39:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 12:39:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 12:39:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 12:39:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 12:39:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:39:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-12 12:39:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-12 12:39:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 12:39:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 12:39:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:39:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:39:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 12:39:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 12:39:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-07-12 12:39:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-07-12 12:39:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:39:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 12:39:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 12:39:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-12 12:39:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-12 12:39:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:39:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:39:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:39:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:39:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:39:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:39:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:39:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 12:39:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 12:39:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 12:39:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 12:39:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-12 12:39:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-12 12:39:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-12 12:39:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-12 12:39:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:39:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:39:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:39:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:39:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 12:39:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 12:39:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:39:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:39:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:39:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:39:47,628 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 12:39:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 12:39:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 12:39:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 12:39:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 12:39:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 12:39:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:39:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:39:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:39:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-12 12:39:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-12 12:39:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:39:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-12 12:39:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-12 12:39:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-12 12:39:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-12 12:39:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:39:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-12 12:39:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-12 12:39:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:39:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:39:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:39:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:39:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 12:39:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 12:39:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 12:39:47,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 12:39:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:39:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:39:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:39:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:39:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:39:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:39:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 12:39:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 12:39:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-12 12:39:47,632 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-12 12:39:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-12 12:39:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-12 12:39:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 12:39:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 12:39:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 12:39:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 12:39:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:39:47,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:39:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 12:39:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 12:39:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-12 12:39:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-12 12:39:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 12:39:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 12:39:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 12:39:47,634 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 12:39:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-12 12:39:47,635 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-12 12:39:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-12 12:39:47,635 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-12 12:39:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-12 12:39:47,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-12 12:39:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:39:47,635 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:39:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-12 12:39:47,636 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-12 12:39:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 12:39:47,636 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 12:39:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:39:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:39:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:39:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:39:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:39:47,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:39:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-12 12:39:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-12 12:39:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-12 12:39:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-12 12:39:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 12:39:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 12:39:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:39:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:39:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-12 12:39:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-12 12:39:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-12 12:39:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-12 12:39:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 12:39:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 12:39:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 12:39:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 12:39:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-12 12:39:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-12 12:39:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-12 12:39:47,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-12 12:39:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 12:39:47,639 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 12:39:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 12:39:47,639 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 12:39:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 12:39:47,639 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 12:39:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-12 12:39:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-12 12:39:48,293 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:39:48,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:39:51,430 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:40:40,386 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:40:40,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:40:40,406 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 12:40:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:40:40 BoogieIcfgContainer [2022-07-12 12:40:40,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:40:40,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:40:40,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:40:40,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:40:40,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:39:43" (1/3) ... [2022-07-12 12:40:40,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f1d76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:40:40, skipping insertion in model container [2022-07-12 12:40:40,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:39:46" (2/3) ... [2022-07-12 12:40:40,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f1d76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:40:40, skipping insertion in model container [2022-07-12 12:40:40,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:40:40" (3/3) ... [2022-07-12 12:40:40,423 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-12 12:40:40,434 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:40:40,434 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:40:40,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:40:40,512 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@519c369e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4167faaf [2022-07-12 12:40:40,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:40:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) [2022-07-12 12:40:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 12:40:40,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:40,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:40,528 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:40,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:40,531 INFO L85 PathProgramCache]: Analyzing trace with hash 26763159, now seen corresponding path program 1 times [2022-07-12 12:40:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:40,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350854747] [2022-07-12 12:40:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:40,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:40,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:40,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:40,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:40:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:45,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:40:45,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:45,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:40:45,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:45,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:45,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350854747] [2022-07-12 12:40:45,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350854747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:45,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:45,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:40:45,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770545645] [2022-07-12 12:40:45,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:45,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:40:45,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:40:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:40:45,958 INFO L87 Difference]: Start difference. First operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 12:40:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:46,304 INFO L93 Difference]: Finished difference Result 3558 states and 5060 transitions. [2022-07-12 12:40:46,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:40:46,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-07-12 12:40:46,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:46,334 INFO L225 Difference]: With dead ends: 3558 [2022-07-12 12:40:46,334 INFO L226 Difference]: Without dead ends: 1742 [2022-07-12 12:40:46,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:46,354 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:46,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:40:46,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-12 12:40:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1742. [2022-07-12 12:40:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1232 states have (on average 1.2962662337662338) internal successors, (1597), 1255 states have internal predecessors, (1597), 410 states have call successors, (410), 99 states have call predecessors, (410), 99 states have return successors, (410), 406 states have call predecessors, (410), 409 states have call successors, (410) [2022-07-12 12:40:46,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2417 transitions. [2022-07-12 12:40:46,493 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2417 transitions. Word has length 30 [2022-07-12 12:40:46,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:46,493 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2417 transitions. [2022-07-12 12:40:46,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 12:40:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2417 transitions. [2022-07-12 12:40:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 12:40:46,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:46,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:46,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 12:40:46,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:46,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:46,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1564114825, now seen corresponding path program 1 times [2022-07-12 12:40:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:46,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506633718] [2022-07-12 12:40:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:46,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:46,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:46,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:46,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:40:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:52,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 5053 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:40:52,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:40:52,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:40:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:40:52,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:52,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506633718] [2022-07-12 12:40:52,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506633718] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:40:52,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:40:52,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 12:40:52,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570639841] [2022-07-12 12:40:52,760 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:40:52,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:40:52,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:40:52,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:40:52,762 INFO L87 Difference]: Start difference. First operand 1742 states and 2417 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 12:40:53,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:53,502 INFO L93 Difference]: Finished difference Result 3488 states and 4848 transitions. [2022-07-12 12:40:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 12:40:53,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-07-12 12:40:53,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:53,513 INFO L225 Difference]: With dead ends: 3488 [2022-07-12 12:40:53,514 INFO L226 Difference]: Without dead ends: 1753 [2022-07-12 12:40:53,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-12 12:40:53,522 INFO L413 NwaCegarLoop]: 2408 mSDtfsCounter, 14 mSDsluCounter, 9610 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12018 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:53,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12018 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 12:40:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-07-12 12:40:53,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1751. [2022-07-12 12:40:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1240 states have (on average 1.2991935483870967) internal successors, (1611), 1263 states have internal predecessors, (1611), 410 states have call successors, (410), 100 states have call predecessors, (410), 100 states have return successors, (411), 406 states have call predecessors, (411), 409 states have call successors, (411) [2022-07-12 12:40:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2432 transitions. [2022-07-12 12:40:53,569 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2432 transitions. Word has length 31 [2022-07-12 12:40:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:53,570 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2432 transitions. [2022-07-12 12:40:53,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 12:40:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2432 transitions. [2022-07-12 12:40:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 12:40:53,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:53,573 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:53,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:53,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:53,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:53,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:53,788 INFO L85 PathProgramCache]: Analyzing trace with hash -384185321, now seen corresponding path program 2 times [2022-07-12 12:40:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:53,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133685342] [2022-07-12 12:40:53,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:40:53,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:53,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:53,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:53,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:40:58,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:40:58,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:40:59,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:40:59,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 12:40:59,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:59,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:59,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133685342] [2022-07-12 12:40:59,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133685342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:59,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:59,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:40:59,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753217727] [2022-07-12 12:40:59,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:59,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:40:59,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:59,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:40:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:40:59,135 INFO L87 Difference]: Start difference. First operand 1751 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 12:40:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:59,747 INFO L93 Difference]: Finished difference Result 5222 states and 7260 transitions. [2022-07-12 12:40:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:40:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-12 12:40:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:59,764 INFO L225 Difference]: With dead ends: 5222 [2022-07-12 12:40:59,764 INFO L226 Difference]: Without dead ends: 3479 [2022-07-12 12:40:59,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:40:59,773 INFO L413 NwaCegarLoop]: 2830 mSDtfsCounter, 2381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:59,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 5228 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 12:40:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-07-12 12:40:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2022-07-12 12:40:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2461 states have (on average 1.2998780983340106) internal successors, (3199), 2506 states have internal predecessors, (3199), 816 states have call successors, (816), 199 states have call predecessors, (816), 199 states have return successors, (818), 809 states have call predecessors, (818), 815 states have call successors, (818) [2022-07-12 12:40:59,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4833 transitions. [2022-07-12 12:40:59,871 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4833 transitions. Word has length 34 [2022-07-12 12:40:59,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:59,871 INFO L495 AbstractCegarLoop]: Abstraction has 3477 states and 4833 transitions. [2022-07-12 12:40:59,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 12:40:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4833 transitions. [2022-07-12 12:40:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 12:40:59,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:59,873 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:59,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:00,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:00,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:00,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:00,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1036926639, now seen corresponding path program 1 times [2022-07-12 12:41:00,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:00,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238246171] [2022-07-12 12:41:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:00,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:00,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:00,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:00,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:41:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:05,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 5098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:41:05,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 12:41:05,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:05,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:05,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238246171] [2022-07-12 12:41:05,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238246171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:05,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:05,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:41:05,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400023001] [2022-07-12 12:41:05,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:05,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:41:05,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:05,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:41:05,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:41:05,894 INFO L87 Difference]: Start difference. First operand 3477 states and 4833 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 12:41:06,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:06,829 INFO L93 Difference]: Finished difference Result 10412 states and 14529 transitions. [2022-07-12 12:41:06,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:41:06,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-07-12 12:41:06,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:06,876 INFO L225 Difference]: With dead ends: 10412 [2022-07-12 12:41:06,877 INFO L226 Difference]: Without dead ends: 6938 [2022-07-12 12:41:06,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:41:06,901 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 2384 mSDsluCounter, 8194 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 11086 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:06,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 11086 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 12:41:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2022-07-12 12:41:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6928. [2022-07-12 12:41:07,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 4901 states have (on average 1.29973474801061) internal successors, (6370), 4990 states have internal predecessors, (6370), 1629 states have call successors, (1629), 397 states have call predecessors, (1629), 397 states have return successors, (1669), 1616 states have call predecessors, (1669), 1628 states have call successors, (1669) [2022-07-12 12:41:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 9668 transitions. [2022-07-12 12:41:07,122 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 9668 transitions. Word has length 38 [2022-07-12 12:41:07,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:07,123 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 9668 transitions. [2022-07-12 12:41:07,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 12:41:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 9668 transitions. [2022-07-12 12:41:07,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-12 12:41:07,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:07,137 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-12 12:41:07,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 12:41:07,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:07,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash -915869094, now seen corresponding path program 1 times [2022-07-12 12:41:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:07,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899643663] [2022-07-12 12:41:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:07,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:07,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:07,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:07,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:41:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:13,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:41:13,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 12:41:13,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:13,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:13,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899643663] [2022-07-12 12:41:13,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899643663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:13,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:13,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:41:13,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929313956] [2022-07-12 12:41:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:13,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:41:13,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:13,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:41:13,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:41:13,431 INFO L87 Difference]: Start difference. First operand 6928 states and 9668 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 12:41:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:14,390 INFO L93 Difference]: Finished difference Result 19528 states and 27122 transitions. [2022-07-12 12:41:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:41:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2022-07-12 12:41:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:14,462 INFO L225 Difference]: With dead ends: 19528 [2022-07-12 12:41:14,462 INFO L226 Difference]: Without dead ends: 12608 [2022-07-12 12:41:14,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:41:14,498 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 1987 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:14,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5221 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 12:41:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-07-12 12:41:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12486. [2022-07-12 12:41:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 8841 states have (on average 1.2943105983486032) internal successors, (11443), 9010 states have internal predecessors, (11443), 2899 states have call successors, (2899), 749 states have call predecessors, (2899), 745 states have return successors, (2969), 2862 states have call predecessors, (2969), 2898 states have call successors, (2969) [2022-07-12 12:41:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 17311 transitions. [2022-07-12 12:41:14,875 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 17311 transitions. Word has length 147 [2022-07-12 12:41:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:14,877 INFO L495 AbstractCegarLoop]: Abstraction has 12486 states and 17311 transitions. [2022-07-12 12:41:14,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 12:41:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 17311 transitions. [2022-07-12 12:41:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-12 12:41:14,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:14,890 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 12:41:15,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:15,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:15,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:15,116 INFO L85 PathProgramCache]: Analyzing trace with hash 79837402, now seen corresponding path program 1 times [2022-07-12 12:41:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:15,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657660062] [2022-07-12 12:41:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:15,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:15,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:15,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:15,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:41:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:21,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 5529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:41:21,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-12 12:41:21,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:21,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:21,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657660062] [2022-07-12 12:41:21,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657660062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:21,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:21,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:41:21,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888264052] [2022-07-12 12:41:21,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:21,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:41:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:41:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:41:21,630 INFO L87 Difference]: Start difference. First operand 12486 states and 17311 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 12:41:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:22,562 INFO L93 Difference]: Finished difference Result 32612 states and 45079 transitions. [2022-07-12 12:41:22,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:41:22,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-12 12:41:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:22,692 INFO L225 Difference]: With dead ends: 32612 [2022-07-12 12:41:22,693 INFO L226 Difference]: Without dead ends: 20130 [2022-07-12 12:41:22,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:41:22,760 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 1753 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:22,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 6089 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 12:41:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20130 states. [2022-07-12 12:41:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20130 to 20096. [2022-07-12 12:41:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20096 states, 14259 states have (on average 1.2925170068027212) internal successors, (18430), 14535 states have internal predecessors, (18430), 4591 states have call successors, (4591), 1250 states have call predecessors, (4591), 1245 states have return successors, (4694), 4542 states have call predecessors, (4694), 4590 states have call successors, (4694) [2022-07-12 12:41:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20096 states to 20096 states and 27715 transitions. [2022-07-12 12:41:23,427 INFO L78 Accepts]: Start accepts. Automaton has 20096 states and 27715 transitions. Word has length 157 [2022-07-12 12:41:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:23,427 INFO L495 AbstractCegarLoop]: Abstraction has 20096 states and 27715 transitions. [2022-07-12 12:41:23,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 12:41:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 20096 states and 27715 transitions. [2022-07-12 12:41:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-12 12:41:23,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:23,442 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-07-12 12:41:23,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:23,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:23,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:23,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:23,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1663908607, now seen corresponding path program 1 times [2022-07-12 12:41:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:23,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020366945] [2022-07-12 12:41:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:23,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:23,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:23,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:23,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:41:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:29,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 5571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:41:29,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-12 12:41:29,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:29,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:29,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020366945] [2022-07-12 12:41:29,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020366945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:29,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:29,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:41:29,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446109213] [2022-07-12 12:41:29,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:29,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:41:29,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:29,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:41:29,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:41:29,975 INFO L87 Difference]: Start difference. First operand 20096 states and 27715 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:41:31,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:31,188 INFO L93 Difference]: Finished difference Result 48376 states and 66581 transitions. [2022-07-12 12:41:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:41:31,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2022-07-12 12:41:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:31,359 INFO L225 Difference]: With dead ends: 48376 [2022-07-12 12:41:31,360 INFO L226 Difference]: Without dead ends: 28288 [2022-07-12 12:41:31,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:41:31,451 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2250 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:31,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 5433 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 12:41:31,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28288 states. [2022-07-12 12:41:32,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28288 to 28232. [2022-07-12 12:41:32,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 20059 states have (on average 1.2894959868388254) internal successors, (25866), 20451 states have internal predecessors, (25866), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-12 12:41:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 38737 transitions. [2022-07-12 12:41:32,541 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 38737 transitions. Word has length 173 [2022-07-12 12:41:32,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:32,543 INFO L495 AbstractCegarLoop]: Abstraction has 28232 states and 38737 transitions. [2022-07-12 12:41:32,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:41:32,544 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 38737 transitions. [2022-07-12 12:41:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 12:41:32,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:32,562 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-07-12 12:41:32,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:32,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:32,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:32,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1881706839, now seen corresponding path program 1 times [2022-07-12 12:41:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:32,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809283437] [2022-07-12 12:41:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:32,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:32,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:32,794 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:32,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:41:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:39,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 5629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:41:39,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 12:41:39,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:39,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809283437] [2022-07-12 12:41:39,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809283437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:39,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:39,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:41:39,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347593502] [2022-07-12 12:41:39,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:39,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:41:39,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:41:39,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:41:39,388 INFO L87 Difference]: Start difference. First operand 28232 states and 38737 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 12:41:41,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:41,322 INFO L93 Difference]: Finished difference Result 67128 states and 92145 transitions. [2022-07-12 12:41:41,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:41:41,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-07-12 12:41:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:41,557 INFO L225 Difference]: With dead ends: 67128 [2022-07-12 12:41:41,557 INFO L226 Difference]: Without dead ends: 38912 [2022-07-12 12:41:41,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:41:41,683 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 2472 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 11381 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:41,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 11381 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 12:41:41,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38912 states. [2022-07-12 12:41:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38912 to 28248. [2022-07-12 12:41:42,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-12 12:41:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-12 12:41:42,994 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 190 [2022-07-12 12:41:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:42,995 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-12 12:41:42,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 12:41:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-12 12:41:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-12 12:41:43,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:43,023 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-07-12 12:41:43,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:41:43,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:43,240 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:43,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:43,240 INFO L85 PathProgramCache]: Analyzing trace with hash -355262749, now seen corresponding path program 1 times [2022-07-12 12:41:43,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:43,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683860258] [2022-07-12 12:41:43,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:43,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:43,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:43,252 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:43,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:41:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:41:50,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 5682 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:41:50,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:41:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 12:41:50,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:41:50,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:41:50,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683860258] [2022-07-12 12:41:50,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683860258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:41:50,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:41:50,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:41:50,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796127788] [2022-07-12 12:41:50,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:41:50,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:41:50,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:41:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:41:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:41:50,563 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 12:41:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:41:52,430 INFO L93 Difference]: Finished difference Result 67168 states and 92185 transitions. [2022-07-12 12:41:52,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:41:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 202 [2022-07-12 12:41:52,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:41:52,591 INFO L225 Difference]: With dead ends: 67168 [2022-07-12 12:41:52,591 INFO L226 Difference]: Without dead ends: 38936 [2022-07-12 12:41:52,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:41:52,687 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 2472 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 10485 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:41:52,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 10485 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 12:41:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38936 states. [2022-07-12 12:41:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38936 to 28248. [2022-07-12 12:41:53,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-12 12:41:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-12 12:41:53,668 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 202 [2022-07-12 12:41:53,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:41:53,669 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-12 12:41:53,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 12:41:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-12 12:41:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-12 12:41:53,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:41:53,692 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2022-07-12 12:41:53,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 12:41:53,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:41:53,912 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:41:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:41:53,912 INFO L85 PathProgramCache]: Analyzing trace with hash -998761700, now seen corresponding path program 1 times [2022-07-12 12:41:53,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:41:53,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692131466] [2022-07-12 12:41:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:41:53,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:41:53,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:41:53,921 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:41:53,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:42:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:01,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 5959 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:01,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 12:42:02,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:02,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:02,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692131466] [2022-07-12 12:42:02,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692131466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:02,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:02,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:42:02,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263129221] [2022-07-12 12:42:02,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:02,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:02,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:02,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:02,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:02,474 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 12:42:03,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:03,214 INFO L93 Difference]: Finished difference Result 56480 states and 77488 transitions. [2022-07-12 12:42:03,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:03,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 241 [2022-07-12 12:42:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:03,428 INFO L225 Difference]: With dead ends: 56480 [2022-07-12 12:42:03,430 INFO L226 Difference]: Without dead ends: 28248 [2022-07-12 12:42:03,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:03,495 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2359 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:03,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 2411 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:42:03,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28248 states. [2022-07-12 12:42:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28248 to 28248. [2022-07-12 12:42:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2888667496886674) internal successors, (25874), 20467 states have internal predecessors, (25874), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-12 12:42:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38745 transitions. [2022-07-12 12:42:04,435 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38745 transitions. Word has length 241 [2022-07-12 12:42:04,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:04,438 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38745 transitions. [2022-07-12 12:42:04,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 12:42:04,438 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38745 transitions. [2022-07-12 12:42:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-12 12:42:04,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:04,457 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:42:04,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 12:42:04,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:04,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash 736352434, now seen corresponding path program 1 times [2022-07-12 12:42:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:04,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442497504] [2022-07-12 12:42:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:04,692 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:42:04,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:42:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:14,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 6015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:14,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:42:14,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:14,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:14,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442497504] [2022-07-12 12:42:14,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442497504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:14,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:14,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:42:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565319459] [2022-07-12 12:42:14,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:14,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:14,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:14,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:14,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:14,356 INFO L87 Difference]: Start difference. First operand 28248 states and 38745 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 12:42:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:15,214 INFO L93 Difference]: Finished difference Result 56488 states and 77488 transitions. [2022-07-12 12:42:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-12 12:42:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:15,329 INFO L225 Difference]: With dead ends: 56488 [2022-07-12 12:42:15,329 INFO L226 Difference]: Without dead ends: 28256 [2022-07-12 12:42:15,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:15,404 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 0 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:15,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:42:15,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-12 12:42:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-12 12:42:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.288751680525818) internal successors, (25882), 20475 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-12 12:42:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38753 transitions. [2022-07-12 12:42:16,389 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38753 transitions. Word has length 253 [2022-07-12 12:42:16,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:16,390 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38753 transitions. [2022-07-12 12:42:16,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 12:42:16,390 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38753 transitions. [2022-07-12 12:42:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-12 12:42:16,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:16,407 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:42:16,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-12 12:42:16,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:16,624 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1263746484, now seen corresponding path program 1 times [2022-07-12 12:42:16,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:16,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805027276] [2022-07-12 12:42:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:16,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:16,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:16,631 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:42:16,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 12:42:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:27,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:42:27,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:42:27,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:27,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:27,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805027276] [2022-07-12 12:42:27,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805027276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:27,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:27,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:42:27,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446541510] [2022-07-12 12:42:27,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:27,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:42:27,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:27,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:42:27,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:27,895 INFO L87 Difference]: Start difference. First operand 28256 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 12:42:28,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:28,665 INFO L93 Difference]: Finished difference Result 56496 states and 77632 transitions. [2022-07-12 12:42:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:42:28,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-12 12:42:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:28,835 INFO L225 Difference]: With dead ends: 56496 [2022-07-12 12:42:28,835 INFO L226 Difference]: Without dead ends: 28256 [2022-07-12 12:42:28,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:42:28,930 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2338 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:28,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 2404 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:42:28,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-12 12:42:29,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-12 12:42:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.2857640790718519) internal successors, (25822), 20475 states have internal predecessors, (25822), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-12 12:42:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38693 transitions. [2022-07-12 12:42:29,887 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38693 transitions. Word has length 253 [2022-07-12 12:42:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:29,888 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38693 transitions. [2022-07-12 12:42:29,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 12:42:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38693 transitions. [2022-07-12 12:42:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-12 12:42:29,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:29,903 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:42:30,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 12:42:30,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:30,120 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:30,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1912339254, now seen corresponding path program 1 times [2022-07-12 12:42:30,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:30,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545801764] [2022-07-12 12:42:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:30,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:30,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:30,127 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:42:30,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 12:42:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:40,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-12 12:42:40,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:42:40,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:40,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:40,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545801764] [2022-07-12 12:42:40,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545801764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:40,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:40,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 12:42:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010242732] [2022-07-12 12:42:40,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:42:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:42:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:42:40,940 INFO L87 Difference]: Start difference. First operand 28256 states and 38693 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 12:42:43,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:42:45,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:42:47,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:42:47,746 INFO L93 Difference]: Finished difference Result 60436 states and 83406 transitions. [2022-07-12 12:42:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 12:42:47,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-12 12:42:47,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:42:47,866 INFO L225 Difference]: With dead ends: 60436 [2022-07-12 12:42:47,866 INFO L226 Difference]: Without dead ends: 32196 [2022-07-12 12:42:47,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:42:47,942 INFO L413 NwaCegarLoop]: 2931 mSDtfsCounter, 2280 mSDsluCounter, 16453 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 481 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:42:47,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 19384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 12:42:47,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32196 states. [2022-07-12 12:42:48,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32196 to 28312. [2022-07-12 12:42:48,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28312 states, 20131 states have (on average 1.285082708260891) internal successors, (25870), 20523 states have internal predecessors, (25870), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1813 states have return successors, (6552), 6310 states have call predecessors, (6552), 6366 states have call successors, (6552) [2022-07-12 12:42:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28312 states to 28312 states and 38789 transitions. [2022-07-12 12:42:48,900 INFO L78 Accepts]: Start accepts. Automaton has 28312 states and 38789 transitions. Word has length 253 [2022-07-12 12:42:48,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:42:48,901 INFO L495 AbstractCegarLoop]: Abstraction has 28312 states and 38789 transitions. [2022-07-12 12:42:48,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 12:42:48,901 INFO L276 IsEmpty]: Start isEmpty. Operand 28312 states and 38789 transitions. [2022-07-12 12:42:48,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-12 12:42:48,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:42:48,915 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:42:49,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 12:42:49,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:42:49,134 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:42:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:42:49,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2144538835, now seen corresponding path program 1 times [2022-07-12 12:42:49,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:42:49,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958229442] [2022-07-12 12:42:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:42:49,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:42:49,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:42:49,141 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:42:49,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 12:42:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:42:58,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 6034 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-12 12:42:58,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:42:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 12:42:59,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:42:59,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:42:59,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958229442] [2022-07-12 12:42:59,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958229442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:42:59,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:42:59,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 12:42:59,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450347072] [2022-07-12 12:42:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:42:59,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:42:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:42:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:42:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:42:59,186 INFO L87 Difference]: Start difference. First operand 28312 states and 38789 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-12 12:43:01,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:03,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:43:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:04,581 INFO L93 Difference]: Finished difference Result 56528 states and 77476 transitions. [2022-07-12 12:43:04,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:43:04,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 259 [2022-07-12 12:43:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:04,695 INFO L225 Difference]: With dead ends: 56528 [2022-07-12 12:43:04,695 INFO L226 Difference]: Without dead ends: 28232 [2022-07-12 12:43:04,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 12:43:04,776 INFO L413 NwaCegarLoop]: 2412 mSDtfsCounter, 7 mSDsluCounter, 12023 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14435 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:04,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14435 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 12:43:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28232 states. [2022-07-12 12:43:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28232 to 28200. [2022-07-12 12:43:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28200 states, 20043 states have (on average 1.284139100932994) internal successors, (25738), 20435 states have internal predecessors, (25738), 6347 states have call successors, (6347), 1806 states have call predecessors, (6347), 1809 states have return successors, (6532), 6290 states have call predecessors, (6532), 6346 states have call successors, (6532) [2022-07-12 12:43:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28200 states to 28200 states and 38617 transitions. [2022-07-12 12:43:05,683 INFO L78 Accepts]: Start accepts. Automaton has 28200 states and 38617 transitions. Word has length 259 [2022-07-12 12:43:05,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:43:05,684 INFO L495 AbstractCegarLoop]: Abstraction has 28200 states and 38617 transitions. [2022-07-12 12:43:05,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-12 12:43:05,684 INFO L276 IsEmpty]: Start isEmpty. Operand 28200 states and 38617 transitions. [2022-07-12 12:43:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-12 12:43:05,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:43:05,698 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:43:05,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 12:43:05,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:43:05,908 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:43:05,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:43:05,908 INFO L85 PathProgramCache]: Analyzing trace with hash -770997336, now seen corresponding path program 1 times [2022-07-12 12:43:05,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:43:05,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402506439] [2022-07-12 12:43:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:43:05,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:43:05,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:43:05,915 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:43:05,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 12:43:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:12,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 5948 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:43:12,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:43:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-12 12:43:15,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:43:15,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:43:15,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402506439] [2022-07-12 12:43:15,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402506439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:43:15,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:43:15,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:43:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774607793] [2022-07-12 12:43:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:43:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:43:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:43:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:43:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:43:15,728 INFO L87 Difference]: Start difference. First operand 28200 states and 38617 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 12:43:26,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:26,512 INFO L93 Difference]: Finished difference Result 84632 states and 115991 transitions. [2022-07-12 12:43:26,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:43:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 290 [2022-07-12 12:43:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:26,816 INFO L225 Difference]: With dead ends: 84632 [2022-07-12 12:43:26,816 INFO L226 Difference]: Without dead ends: 56448 [2022-07-12 12:43:26,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:43:26,930 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 2320 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 9107 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:26,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 9107 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-07-12 12:43:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56448 states. [2022-07-12 12:43:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56448 to 56440. [2022-07-12 12:43:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56440 states, 40107 states have (on average 1.2835664597202483) internal successors, (51480), 40915 states have internal predecessors, (51480), 12691 states have call successors, (12691), 3610 states have call predecessors, (12691), 3641 states have return successors, (13146), 12578 states have call predecessors, (13146), 12690 states have call successors, (13146) [2022-07-12 12:43:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56440 states to 56440 states and 77317 transitions. [2022-07-12 12:43:28,949 INFO L78 Accepts]: Start accepts. Automaton has 56440 states and 77317 transitions. Word has length 290 [2022-07-12 12:43:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:43:28,951 INFO L495 AbstractCegarLoop]: Abstraction has 56440 states and 77317 transitions. [2022-07-12 12:43:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 12:43:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 56440 states and 77317 transitions. [2022-07-12 12:43:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-12 12:43:28,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:43:28,983 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:43:29,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 12:43:29,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:43:29,200 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:43:29,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:43:29,200 INFO L85 PathProgramCache]: Analyzing trace with hash 336208416, now seen corresponding path program 1 times [2022-07-12 12:43:29,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:43:29,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590678109] [2022-07-12 12:43:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:43:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:43:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:43:29,207 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:43:29,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 12:43:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:43:36,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 5946 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:43:36,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:43:39,427 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-12 12:43:39,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:43:39,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:43:39,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590678109] [2022-07-12 12:43:39,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590678109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:43:39,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:43:39,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:43:39,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780428099] [2022-07-12 12:43:39,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:43:39,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:43:39,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:43:39,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:43:39,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:43:39,429 INFO L87 Difference]: Start difference. First operand 56440 states and 77317 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 12:43:51,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:43:51,447 INFO L93 Difference]: Finished difference Result 169336 states and 232119 transitions. [2022-07-12 12:43:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:43:51,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 289 [2022-07-12 12:43:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:43:52,290 INFO L225 Difference]: With dead ends: 169336 [2022-07-12 12:43:52,290 INFO L226 Difference]: Without dead ends: 112912 [2022-07-12 12:43:52,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:43:52,491 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 2314 mSDsluCounter, 5713 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 8446 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:43:52,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 8446 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-07-12 12:43:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112912 states.