./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:53:04,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:53:04,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:53:04,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:53:04,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:53:04,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:53:04,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:53:04,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:53:04,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:53:04,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:53:04,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:53:04,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:53:04,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:53:04,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:53:04,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:53:04,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:53:04,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:53:04,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:53:04,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:53:04,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:53:04,656 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:53:04,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:53:04,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:53:04,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:53:04,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:53:04,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:53:04,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:53:04,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:53:04,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:53:04,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:53:04,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:53:04,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:53:04,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:53:04,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:53:04,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:53:04,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:53:04,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:53:04,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:53:04,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:53:04,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:53:04,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:53:04,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:53:04,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:53:04,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:53:04,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:53:04,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:53:04,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:53:04,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:53:04,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:53:04,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:53:04,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:53:04,731 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:53:04,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:53:04,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:53:04,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:53:04,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:53:04,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:53:04,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:53:04,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:53:04,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:53:04,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:53:04,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:53:04,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:53:04,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:53:04,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:53:04,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:53:04,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:53:04,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:53:04,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:53:04,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:53:04,736 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:53:04,736 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:53:04,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:53:04,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-07-21 09:53:05,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:53:05,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:53:05,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:53:05,077 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:53:05,078 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:53:05,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-21 09:53:05,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7635df9c/ec3b721e9387419e906a7a5ce1172392/FLAG6e2079686 [2022-07-21 09:53:06,468 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:53:06,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-21 09:53:06,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7635df9c/ec3b721e9387419e906a7a5ce1172392/FLAG6e2079686 [2022-07-21 09:53:06,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7635df9c/ec3b721e9387419e906a7a5ce1172392 [2022-07-21 09:53:06,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:53:06,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:53:06,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:53:06,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:53:06,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:53:06,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:53:06" (1/1) ... [2022-07-21 09:53:06,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db0306f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:06, skipping insertion in model container [2022-07-21 09:53:06,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:53:06" (1/1) ... [2022-07-21 09:53:06,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:53:07,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:53:10,025 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-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-07-21 09:53:19,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:53:19,274 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:53:19,543 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-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-07-21 09:53:19,689 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: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.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 09:53:19,697 INFO L158 Benchmark]: Toolchain (without parser) took 13020.19ms. Allocated memory was 94.4MB in the beginning and 276.8MB in the end (delta: 182.5MB). Free memory was 46.7MB in the beginning and 85.3MB in the end (delta: -38.5MB). Peak memory consumption was 183.5MB. Max. memory is 16.1GB. [2022-07-21 09:53:19,697 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.8MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:53:19,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 13016.86ms. Allocated memory was 94.4MB in the beginning and 276.8MB in the end (delta: 182.5MB). Free memory was 46.7MB in the beginning and 85.3MB in the end (delta: -38.5MB). Peak memory consumption was 183.5MB. Max. memory is 16.1GB. [2022-07-21 09:53:19,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.8MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 13016.86ms. Allocated memory was 94.4MB in the beginning and 276.8MB in the end (delta: 182.5MB). Free memory was 46.7MB in the beginning and 85.3MB in the end (delta: -38.5MB). Peak memory consumption was 183.5MB. 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-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:53:21,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:53:21,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:53:21,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:53:21,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:53:21,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:53:21,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:53:21,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:53:21,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:53:21,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:53:21,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:53:21,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:53:21,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:53:21,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:53:21,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:53:21,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:53:21,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:53:21,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:53:21,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:53:21,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:53:21,484 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:53:21,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:53:21,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:53:21,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:53:21,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:53:21,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:53:21,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:53:21,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:53:21,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:53:21,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:53:21,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:53:21,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:53:21,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:53:21,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:53:21,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:53:21,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:53:21,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:53:21,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:53:21,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:53:21,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:53:21,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:53:21,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:53:21,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 09:53:21,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:53:21,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:53:21,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:53:21,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:53:21,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:53:21,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:53:21,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:53:21,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:53:21,549 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:53:21,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:53:21,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:53:21,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:53:21,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:53:21,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:53:21,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 09:53:21,551 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 09:53:21,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 09:53:21,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:53:21,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:53:21,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:53:21,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:53:21,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:53:21,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:53:21,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:53:21,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:53:21,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:53:21,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:53:21,554 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 09:53:21,555 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 09:53:21,555 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:53:21,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:53:21,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:53:21,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 09:53:21,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-07-21 09:53:21,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:53:21,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:53:21,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:53:21,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:53:21,877 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:53:21,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-21 09:53:21,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a226fcc4/16066e78fdcf47c1ae929dc42850f18c/FLAG464000aa6 [2022-07-21 09:53:23,340 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:53:23,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-21 09:53:23,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a226fcc4/16066e78fdcf47c1ae929dc42850f18c/FLAG464000aa6 [2022-07-21 09:53:23,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a226fcc4/16066e78fdcf47c1ae929dc42850f18c [2022-07-21 09:53:23,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:53:23,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:53:23,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:53:23,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:53:23,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:53:23,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:53:23" (1/1) ... [2022-07-21 09:53:23,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268e7149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:23, skipping insertion in model container [2022-07-21 09:53:23,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:53:23" (1/1) ... [2022-07-21 09:53:23,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:53:24,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:53:27,404 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-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-07-21 09:53:37,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:53:37,079 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 09:53:37,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:53:37,476 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-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-07-21 09:53:38,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:53:38,156 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:53:38,411 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-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2022-07-21 09:53:39,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:53:39,985 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:53:39,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39 WrapperNode [2022-07-21 09:53:39,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:53:39,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:53:39,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:53:39,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:53:39,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,509 INFO L137 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 2894 [2022-07-21 09:53:40,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:53:40,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:53:40,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:53:40,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:53:40,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:53:40,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:53:40,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:53:40,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:53:40,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (1/1) ... [2022-07-21 09:53:40,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:53:40,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:53:40,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 09:53:40,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 09:53:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:53:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:53:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:53:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:53:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-07-21 09:53:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-07-21 09:53:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 09:53:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-07-21 09:53:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-07-21 09:53:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 09:53:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 09:53:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 09:53:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-07-21 09:53:40,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-07-21 09:53:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-21 09:53:40,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-21 09:53:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-07-21 09:53:40,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-07-21 09:53:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-07-21 09:53:40,710 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-07-21 09:53:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:53:41,132 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:53:41,134 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:53:41,317 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 09:55:13,503 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-07-21 09:55:13,503 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-07-21 09:55:13,582 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:55:13,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:55:13,587 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:55:13,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:55:13 BoogieIcfgContainer [2022-07-21 09:55:13,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:55:13,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:55:13,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:55:13,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:55:13,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:53:23" (1/3) ... [2022-07-21 09:55:13,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ce5d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:55:13, skipping insertion in model container [2022-07-21 09:55:13,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:53:39" (2/3) ... [2022-07-21 09:55:13,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ce5d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:55:13, skipping insertion in model container [2022-07-21 09:55:13,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:55:13" (3/3) ... [2022-07-21 09:55:13,595 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-21 09:55:13,607 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:55:13,607 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:55:13,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:55:13,650 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@1d0abae1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e76403e [2022-07-21 09:55:13,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:55:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 09:55:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 09:55:13,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:55:13,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:55:13,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:55:13,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:55:13,669 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2022-07-21 09:55:13,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:55:13,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505885292] [2022-07-21 09:55:13,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:55:13,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:55:13,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:55:13,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:55:13,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 09:55:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:55:17,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 5817 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 09:55:17,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:55:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:55:17,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:55:17,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:55:17,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505885292] [2022-07-21 09:55:17,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505885292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:55:17,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:55:17,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 09:55:17,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399314576] [2022-07-21 09:55:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:55:17,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:55:17,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:55:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:55:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:55:17,171 INFO L87 Difference]: Start difference. First operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:55:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:55:17,251 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-07-21 09:55:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:55:17,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-21 09:55:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:55:17,262 INFO L225 Difference]: With dead ends: 167 [2022-07-21 09:55:17,262 INFO L226 Difference]: Without dead ends: 103 [2022-07-21 09:55:17,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:55:17,267 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:55:17,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:55:17,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-21 09:55:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-07-21 09:55:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-21 09:55:17,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-07-21 09:55:17,305 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-07-21 09:55:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:55:17,305 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-07-21 09:55:17,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:55:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-07-21 09:55:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 09:55:17,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:55:17,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:55:17,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:55:17,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:55:17,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:55:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:55:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2022-07-21 09:55:17,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:55:17,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274100147] [2022-07-21 09:55:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:55:17,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:55:17,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:55:17,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:55:17,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 09:55:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:55:20,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 5842 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 09:55:20,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:55:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:55:20,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:55:20,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:55:20,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274100147] [2022-07-21 09:55:20,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274100147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:55:20,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:55:20,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:55:20,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561540784] [2022-07-21 09:55:20,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:55:20,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:55:20,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:55:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:55:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:55:20,897 INFO L87 Difference]: Start difference. First operand 100 states and 122 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:55:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:55:20,971 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-07-21 09:55:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:55:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 09:55:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:55:20,974 INFO L225 Difference]: With dead ends: 213 [2022-07-21 09:55:20,974 INFO L226 Difference]: Without dead ends: 115 [2022-07-21 09:55:20,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:55:20,976 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:55:20,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:55:20,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-21 09:55:20,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-07-21 09:55:20,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.2826086956521738) internal successors, (118), 93 states have internal predecessors, (118), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-21 09:55:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-07-21 09:55:20,988 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-07-21 09:55:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:55:20,989 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-07-21 09:55:20,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:55:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-07-21 09:55:20,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-21 09:55:20,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:55:20,990 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] [2022-07-21 09:55:21,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 09:55:21,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:55:21,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:55:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:55:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2022-07-21 09:55:21,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:55:21,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692177239] [2022-07-21 09:55:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:55:21,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:55:21,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:55:21,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:55:21,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 09:55:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:55:24,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 5858 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 09:55:24,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:55:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:55:24,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:55:24,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 09:55:24,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692177239] [2022-07-21 09:55:24,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692177239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:55:24,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:55:24,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 09:55:24,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089801301] [2022-07-21 09:55:24,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:55:24,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:55:24,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 09:55:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:55:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:55:24,629 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-07-21 09:55:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:55:24,810 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2022-07-21 09:55:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:55:24,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 29 [2022-07-21 09:55:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:55:24,813 INFO L225 Difference]: With dead ends: 185 [2022-07-21 09:55:24,813 INFO L226 Difference]: Without dead ends: 125 [2022-07-21 09:55:24,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:55:24,815 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 7 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:55:24,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 346 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:55:24,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-21 09:55:24,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-07-21 09:55:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 100 states have (on average 1.26) internal successors, (126), 102 states have internal predecessors, (126), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2022-07-21 09:55:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-07-21 09:55:24,826 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-07-21 09:55:24,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:55:24,826 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-07-21 09:55:24,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-07-21 09:55:24,827 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-07-21 09:55:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-21 09:55:24,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:55:24,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:55:24,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-21 09:55:25,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 09:55:25,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:55:25,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:55:25,037 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2022-07-21 09:55:25,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 09:55:25,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731335893] [2022-07-21 09:55:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:55:25,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 09:55:25,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 09:55:25,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 09:55:25,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process