./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 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-3.0/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-?-6c24879 [2022-07-12 11:18:05,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:18:05,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:18:05,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:18:05,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:18:05,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:18:05,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:18:05,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:18:05,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:18:05,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:18:05,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:18:05,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:18:05,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:18:05,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:18:05,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:18:05,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:18:05,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:18:05,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:18:05,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:18:05,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:18:05,798 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:18:05,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:18:05,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:18:05,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:18:05,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:18:05,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:18:05,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:18:05,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:18:05,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:18:05,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:18:05,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:18:05,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:18:05,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:18:05,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:18:05,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:18:05,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:18:05,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:18:05,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:18:05,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:18:05,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:18:05,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:18:05,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:18:05,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:18:05,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:18:05,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:18:05,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:18:05,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:18:05,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:18:05,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:18:05,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:18:05,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:18:05,834 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:18:05,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:18:05,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:18:05,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:18:05,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:18:05,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:18:05,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:18:05,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:18:05,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:18:05,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:18:05,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:18:05,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:18:05,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:18:05,837 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:18:05,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:18:05,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:18:05,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-07-12 11:18:06,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:18:06,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:18:06,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:18:06,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:18:06,065 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:18:06,066 INFO L432 ainManager$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 [2022-07-12 11:18:06,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda75a0fd/1a859ce3f4d04c818ac9256c90954842/FLAG9b968ced3 [2022-07-12 11:18:07,181 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:18:07,182 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 [2022-07-12 11:18:07,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda75a0fd/1a859ce3f4d04c818ac9256c90954842/FLAG9b968ced3 [2022-07-12 11:18:07,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda75a0fd/1a859ce3f4d04c818ac9256c90954842 [2022-07-12 11:18:07,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:18:07,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:18:07,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:18:07,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:18:07,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:18:07,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:18:07" (1/1) ... [2022-07-12 11:18:07,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da0d17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:07, skipping insertion in model container [2022-07-12 11:18:07,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:18:07" (1/1) ... [2022-07-12 11:18:07,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:18:07,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:18:10,324 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] [2022-07-12 11:18:18,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:18:18,301 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:18:18,485 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] [2022-07-12 11:18:18,634 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) [2022-07-12 11:18:18,637 INFO L158 Benchmark]: Toolchain (without parser) took 10991.35ms. Allocated memory was 102.8MB in the beginning and 329.3MB in the end (delta: 226.5MB). Free memory was 44.4MB in the beginning and 162.8MB in the end (delta: -118.4MB). Peak memory consumption was 185.2MB. Max. memory is 16.1GB. [2022-07-12 11:18:18,638 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 79.7MB in the beginning and 79.6MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:18:18,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 10989.86ms. Allocated memory was 102.8MB in the beginning and 329.3MB in the end (delta: 226.5MB). Free memory was 44.2MB in the beginning and 162.8MB in the end (delta: -118.6MB). Peak memory consumption was 185.2MB. Max. memory is 16.1GB. [2022-07-12 11:18:18,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 79.7MB in the beginning and 79.6MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 10989.86ms. Allocated memory was 102.8MB in the beginning and 329.3MB in the end (delta: 226.5MB). Free memory was 44.2MB in the beginning and 162.8MB in the end (delta: -118.6MB). Peak memory consumption was 185.2MB. 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-?-6c24879 [2022-07-12 11:18:20,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:18:20,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:18:20,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:18:20,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:18:20,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:18:20,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:18:20,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:18:20,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:18:20,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:18:20,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:18:20,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:18:20,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:18:20,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:18:20,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:18:20,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:18:20,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:18:20,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:18:20,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:18:20,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:18:20,299 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:18:20,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:18:20,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:18:20,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:18:20,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:18:20,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:18:20,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:18:20,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:18:20,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:18:20,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:18:20,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:18:20,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:18:20,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:18:20,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:18:20,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:18:20,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:18:20,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:18:20,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:18:20,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:18:20,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:18:20,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:18:20,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:18:20,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 11:18:20,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:18:20,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:18:20,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:18:20,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:18:20,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:18:20,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:18:20,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:18:20,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:18:20,348 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:18:20,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:18:20,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:18:20,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:18:20,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:18:20,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:18:20,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:18:20,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:18:20,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:18:20,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:18:20,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:18:20,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:18:20,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 11:18:20,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-07-12 11:18:20,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:18:20,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:18:20,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:18:20,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:18:20,631 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:18:20,632 INFO L432 ainManager$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 [2022-07-12 11:18:20,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7186d5b13/d8333660b8f944349d33017fc5a8339c/FLAGf3203eebd [2022-07-12 11:18:21,743 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:18:21,744 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 [2022-07-12 11:18:21,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7186d5b13/d8333660b8f944349d33017fc5a8339c/FLAGf3203eebd [2022-07-12 11:18:21,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7186d5b13/d8333660b8f944349d33017fc5a8339c [2022-07-12 11:18:21,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:18:21,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:18:21,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:18:21,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:18:21,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:18:21,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:18:21" (1/1) ... [2022-07-12 11:18:21,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473b8871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:21, skipping insertion in model container [2022-07-12 11:18:21,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:18:21" (1/1) ... [2022-07-12 11:18:21,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:18:22,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:18:24,557 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] [2022-07-12 11:18:32,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:18:32,453 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 11:18:32,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:18:32,658 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] [2022-07-12 11:18:33,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:18:33,312 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:18:33,479 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] [2022-07-12 11:18:34,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:18:34,376 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:18:34,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34 WrapperNode [2022-07-12 11:18:34,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:18:34,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:18:34,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:18:34,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:18:34,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,760 INFO L137 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 2894 [2022-07-12 11:18:34,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:18:34,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:18:34,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:18:34,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:18:34,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:18:34,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:18:34,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:18:34,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:18:34,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (1/1) ... [2022-07-12 11:18:34,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:18:34,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:18:34,898 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 11:18:34,903 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 11:18:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:18:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:18:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:18:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:18:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-07-12 11:18:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-07-12 11:18:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 11:18:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-07-12 11:18:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-07-12 11:18:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 11:18:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 11:18:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 11:18:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-07-12 11:18:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-07-12 11:18:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-12 11:18:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-12 11:18:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-07-12 11:18:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-07-12 11:18:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-07-12 11:18:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-07-12 11:18:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:18:35,271 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:18:35,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:18:35,385 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 11:20:06,695 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-07-12 11:20:06,695 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-07-12 11:20:06,760 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:20:06,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:20:06,765 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 11:20:06,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:20:06 BoogieIcfgContainer [2022-07-12 11:20:06,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:20:06,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:20:06,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:20:06,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:20:06,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:18:21" (1/3) ... [2022-07-12 11:20:06,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146ae4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:20:06, skipping insertion in model container [2022-07-12 11:20:06,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:18:34" (2/3) ... [2022-07-12 11:20:06,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146ae4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:20:06, skipping insertion in model container [2022-07-12 11:20:06,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:20:06" (3/3) ... [2022-07-12 11:20:06,771 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-12 11:20:06,781 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:20:06,781 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:20:06,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:20:06,816 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@9a92d3f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@652c10aa [2022-07-12 11:20:06,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:20:06,819 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) [2022-07-12 11:20:06,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 11:20:06,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:20:06,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:20:06,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:20:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:20:06,828 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2022-07-12 11:20:06,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:20:06,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542026423] [2022-07-12 11:20:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:20:06,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:20:06,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:20:06,847 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 11:20:06,848 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 11:20:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:20:09,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 5817 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:20:09,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:20:09,938 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 11:20:09,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:20:09,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:20:09,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542026423] [2022-07-12 11:20:09,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542026423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:20:09,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:20:09,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 11:20:09,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668481667] [2022-07-12 11:20:09,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:20:09,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:20:09,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:20:09,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:20:09,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:20:09,962 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) [2022-07-12 11:20:10,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:20:10,054 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-07-12 11:20:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:20:10,056 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 [2022-07-12 11:20:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:20:10,062 INFO L225 Difference]: With dead ends: 167 [2022-07-12 11:20:10,062 INFO L226 Difference]: Without dead ends: 103 [2022-07-12 11:20:10,064 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 [2022-07-12 11:20:10,068 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:20:10,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:20:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-12 11:20:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-07-12 11:20:10,119 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) [2022-07-12 11:20:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-07-12 11:20:10,131 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-07-12 11:20:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:20:10,131 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-07-12 11:20:10,132 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) [2022-07-12 11:20:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-07-12 11:20:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 11:20:10,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:20:10,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:20:10,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 11:20:10,359 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 11:20:10,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:20:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:20:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2022-07-12 11:20:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:20:10,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624064726] [2022-07-12 11:20:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:20:10,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:20:10,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:20:10,368 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 11:20:10,370 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 11:20:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:20:13,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 5842 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:20:13,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:20:13,404 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 11:20:13,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:20:13,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:20:13,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624064726] [2022-07-12 11:20:13,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624064726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:20:13,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:20:13,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:20:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862375979] [2022-07-12 11:20:13,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:20:13,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:20:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:20:13,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:20:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:20:13,414 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) [2022-07-12 11:20:13,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:20:13,483 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-07-12 11:20:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:20:13,484 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 [2022-07-12 11:20:13,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:20:13,485 INFO L225 Difference]: With dead ends: 213 [2022-07-12 11:20:13,485 INFO L226 Difference]: Without dead ends: 115 [2022-07-12 11:20:13,486 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 [2022-07-12 11:20:13,487 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-12 11:20:13,487 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] [2022-07-12 11:20:13,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-12 11:20:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-07-12 11:20:13,507 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) [2022-07-12 11:20:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-07-12 11:20:13,508 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-07-12 11:20:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:20:13,509 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-07-12 11:20:13,509 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) [2022-07-12 11:20:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-07-12 11:20:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 11:20:13,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:20:13,510 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] [2022-07-12 11:20:13,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 11:20:13,710 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 11:20:13,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:20:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:20:13,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2022-07-12 11:20:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:20:13,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786235898] [2022-07-12 11:20:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:20:13,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:20:13,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:20:13,720 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 11:20:13,721 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 11:20:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:20:16,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 5858 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 11:20:16,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:20:16,840 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 11:20:16,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:20:16,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:20:16,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786235898] [2022-07-12 11:20:16,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786235898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:20:16,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:20:16,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:20:16,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596721962] [2022-07-12 11:20:16,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:20:16,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:20:16,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:20:16,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:20:16,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:20:16,842 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) [2022-07-12 11:20:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:20:17,003 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2022-07-12 11:20:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:20:17,004 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 [2022-07-12 11:20:17,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:20:17,005 INFO L225 Difference]: With dead ends: 185 [2022-07-12 11:20:17,005 INFO L226 Difference]: Without dead ends: 125 [2022-07-12 11:20:17,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:20:17,007 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 [2022-07-12 11:20:17,007 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] [2022-07-12 11:20:17,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-12 11:20:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-07-12 11:20:17,017 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) [2022-07-12 11:20:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-07-12 11:20:17,018 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-07-12 11:20:17,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:20:17,018 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-07-12 11:20:17,018 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) [2022-07-12 11:20:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-07-12 11:20:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 11:20:17,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:20:17,019 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] [2022-07-12 11:20:17,098 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 11:20:17,239 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 11:20:17,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:20:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:20:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2022-07-12 11:20:17,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:20:17,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75496002] [2022-07-12 11:20:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:20:17,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:20:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:20:17,247 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 11:20:17,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process