./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 791161d1 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-?-791161d [2022-07-22 22:35:01,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:35:01,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:35:01,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:35:01,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:35:01,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:35:01,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:35:01,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:35:01,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:35:01,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:35:01,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:35:01,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:35:01,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:35:01,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:35:01,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:35:01,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:35:01,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:35:01,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:35:01,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:35:01,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:35:01,585 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:35:01,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:35:01,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:35:01,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:35:01,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:35:01,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:35:01,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:35:01,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:35:01,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:35:01,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:35:01,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:35:01,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:35:01,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:35:01,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:35:01,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:35:01,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:35:01,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:35:01,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:35:01,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:35:01,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:35:01,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:35:01,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:35:01,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:35:01,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:35:01,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:35:01,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:35:01,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:35:01,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:35:01,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:35:01,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:35:01,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:35:01,647 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:35:01,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:35:01,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:35:01,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:35:01,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:35:01,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:35:01,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:35:01,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:35:01,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:35:01,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:35:01,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:35:01,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:35:01,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:35:01,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:35:01,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:35:01,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:35:01,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:35:01,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:35:01,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:35:01,651 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:35:01,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:35:01,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:35:01,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-07-22 22:35:01,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:35:01,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:35:01,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:35:01,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:35:01,914 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:35:01,915 INFO L432 ainManager$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 [2022-07-22 22:35:01,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7afab4b/57c1fafa0e0f473f93cc7d0aac4ff2fc/FLAG0a9623619 [2022-07-22 22:35:03,181 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:35:03,182 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 [2022-07-22 22:35:03,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7afab4b/57c1fafa0e0f473f93cc7d0aac4ff2fc/FLAG0a9623619 [2022-07-22 22:35:03,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7afab4b/57c1fafa0e0f473f93cc7d0aac4ff2fc [2022-07-22 22:35:03,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:35:03,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:35:03,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:35:03,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:35:03,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:35:03,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:35:03" (1/1) ... [2022-07-22 22:35:03,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2a6513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:03, skipping insertion in model container [2022-07-22 22:35:03,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:35:03" (1/1) ... [2022-07-22 22:35:03,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:35:03,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:35:06,807 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] [2022-07-22 22:35:16,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:35:16,300 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:35:16,570 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] [2022-07-22 22:35:16,744 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) [2022-07-22 22:35:16,751 INFO L158 Benchmark]: Toolchain (without parser) took 13392.12ms. Allocated memory was 107.0MB in the beginning and 350.2MB in the end (delta: 243.3MB). Free memory was 44.6MB in the beginning and 185.9MB in the end (delta: -141.3MB). Peak memory consumption was 191.3MB. Max. memory is 16.1GB. [2022-07-22 22:35:16,752 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:35:16,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 13388.74ms. Allocated memory was 107.0MB in the beginning and 350.2MB in the end (delta: 243.3MB). Free memory was 44.3MB in the beginning and 185.9MB in the end (delta: -141.6MB). Peak memory consumption was 191.3MB. Max. memory is 16.1GB. [2022-07-22 22:35:16,756 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 88.1MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 13388.74ms. Allocated memory was 107.0MB in the beginning and 350.2MB in the end (delta: 243.3MB). Free memory was 44.3MB in the beginning and 185.9MB in the end (delta: -141.6MB). Peak memory consumption was 191.3MB. 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-?-791161d [2022-07-22 22:35:18,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:35:18,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:35:18,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:35:18,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:35:18,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:35:18,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:35:18,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:35:18,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:35:18,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:35:18,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:35:18,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:35:18,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:35:18,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:35:18,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:35:18,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:35:18,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:35:18,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:35:18,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:35:18,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:35:18,634 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:35:18,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:35:18,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:35:18,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:35:18,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:35:18,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:35:18,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:35:18,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:35:18,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:35:18,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:35:18,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:35:18,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:35:18,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:35:18,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:35:18,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:35:18,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:35:18,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:35:18,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:35:18,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:35:18,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:35:18,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:35:18,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:35:18,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 22:35:18,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:35:18,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:35:18,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:35:18,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:35:18,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:35:18,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:35:18,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:35:18,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:35:18,708 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:35:18,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:35:18,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:35:18,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:35:18,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:35:18,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:35:18,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 22:35:18,710 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 22:35:18,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 22:35:18,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:35:18,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:35:18,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:35:18,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:35:18,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:35:18,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:35:18,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:35:18,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:35:18,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:35:18,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:35:18,712 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 22:35:18,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 22:35:18,713 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:35:18,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:35:18,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:35:18,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 22:35:18,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2022-07-22 22:35:18,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:35:19,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:35:19,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:35:19,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:35:19,027 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:35:19,029 INFO L432 ainManager$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 [2022-07-22 22:35:19,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64259e8aa/51519cdbc38b4ac8b7c811be03dd3ff8/FLAGc6f29cd13 [2022-07-22 22:35:20,530 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:35:20,531 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 [2022-07-22 22:35:20,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64259e8aa/51519cdbc38b4ac8b7c811be03dd3ff8/FLAGc6f29cd13 [2022-07-22 22:35:20,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64259e8aa/51519cdbc38b4ac8b7c811be03dd3ff8 [2022-07-22 22:35:20,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:35:20,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:35:20,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:35:20,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:35:20,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:35:20,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:35:20" (1/1) ... [2022-07-22 22:35:20,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418355eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:20, skipping insertion in model container [2022-07-22 22:35:20,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:35:20" (1/1) ... [2022-07-22 22:35:20,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:35:21,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:35:24,591 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] [2022-07-22 22:35:34,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:35:34,640 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 22:35:34,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:35:35,176 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] [2022-07-22 22:35:35,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:35:36,001 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:35:36,201 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] [2022-07-22 22:35:37,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:35:37,520 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:35:37,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37 WrapperNode [2022-07-22 22:35:37,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:35:37,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:35:37,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:35:37,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:35:37,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:37,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:37,904 INFO L137 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 2894 [2022-07-22 22:35:37,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:35:37,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:35:37,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:35:37,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:35:37,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:37,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:37,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:37,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:37,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:38,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:38,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:38,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:35:38,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:35:38,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:35:38,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:35:38,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (1/1) ... [2022-07-22 22:35:38,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:35:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:35:38,093 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) [2022-07-22 22:35:38,120 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 [2022-07-22 22:35:38,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:35:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:35:38,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:35:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:35:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-07-22 22:35:38,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-07-22 22:35:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 22:35:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2022-07-22 22:35:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2022-07-22 22:35:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 22:35:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-22 22:35:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-22 22:35:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2022-07-22 22:35:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2022-07-22 22:35:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-22 22:35:38,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-22 22:35:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2022-07-22 22:35:38,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2022-07-22 22:35:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2022-07-22 22:35:38,135 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2022-07-22 22:35:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:35:38,664 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:35:38,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:35:38,911 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-22 22:37:11,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-07-22 22:37:11,477 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-07-22 22:37:11,555 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:37:11,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:37:11,561 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 22:37:11,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:37:11 BoogieIcfgContainer [2022-07-22 22:37:11,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:37:11,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:37:11,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:37:11,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:37:11,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:35:20" (1/3) ... [2022-07-22 22:37:11,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ac663d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:37:11, skipping insertion in model container [2022-07-22 22:37:11,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:35:37" (2/3) ... [2022-07-22 22:37:11,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ac663d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:37:11, skipping insertion in model container [2022-07-22 22:37:11,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:37:11" (3/3) ... [2022-07-22 22:37:11,570 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2022-07-22 22:37:11,583 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:37:11,584 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:37:11,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:37:11,631 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@43169b07, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@abe49bd [2022-07-22 22:37:11,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:37:11,635 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) [2022-07-22 22:37:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-22 22:37:11,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:37:11,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:37:11,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:37:11,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:37:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2022-07-22 22:37:11,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 22:37:11,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368117195] [2022-07-22 22:37:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:37:11,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 22:37:11,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 22:37:11,675 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) [2022-07-22 22:37:11,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 22:37:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:37:15,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 5817 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 22:37:15,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:37:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 22:37:15,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:37:15,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 22:37:15,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368117195] [2022-07-22 22:37:15,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368117195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:37:15,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:37:15,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 22:37:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577791016] [2022-07-22 22:37:15,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:37:15,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 22:37:15,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 22:37:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 22:37:15,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 22:37:15,355 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) [2022-07-22 22:37:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:37:15,452 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2022-07-22 22:37:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 22:37:15,455 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 [2022-07-22 22:37:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:37:15,468 INFO L225 Difference]: With dead ends: 167 [2022-07-22 22:37:15,469 INFO L226 Difference]: Without dead ends: 103 [2022-07-22 22:37:15,473 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 [2022-07-22 22:37:15,484 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 [2022-07-22 22:37:15,487 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] [2022-07-22 22:37:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-22 22:37:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-07-22 22:37:15,539 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) [2022-07-22 22:37:15,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2022-07-22 22:37:15,551 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2022-07-22 22:37:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:37:15,552 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2022-07-22 22:37:15,552 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) [2022-07-22 22:37:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2022-07-22 22:37:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 22:37:15,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:37:15,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:37:15,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-22 22:37:15,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 22:37:15,772 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:37:15,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:37:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2022-07-22 22:37:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 22:37:15,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258302089] [2022-07-22 22:37:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:37:15,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 22:37:15,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 22:37:15,787 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) [2022-07-22 22:37:15,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 22:37:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:37:19,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 5842 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 22:37:19,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:37:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 22:37:19,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:37:19,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 22:37:19,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258302089] [2022-07-22 22:37:19,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258302089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:37:19,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:37:19,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 22:37:19,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985828704] [2022-07-22 22:37:19,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:37:19,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 22:37:19,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 22:37:19,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 22:37:19,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 22:37:19,507 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) [2022-07-22 22:37:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:37:19,575 INFO L93 Difference]: Finished difference Result 213 states and 268 transitions. [2022-07-22 22:37:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 22:37:19,576 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 [2022-07-22 22:37:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:37:19,577 INFO L225 Difference]: With dead ends: 213 [2022-07-22 22:37:19,577 INFO L226 Difference]: Without dead ends: 115 [2022-07-22 22:37:19,578 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 [2022-07-22 22:37:19,579 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 [2022-07-22 22:37:19,579 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] [2022-07-22 22:37:19,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-22 22:37:19,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-07-22 22:37:19,589 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) [2022-07-22 22:37:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2022-07-22 22:37:19,591 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 19 [2022-07-22 22:37:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:37:19,591 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2022-07-22 22:37:19,591 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) [2022-07-22 22:37:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2022-07-22 22:37:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-22 22:37:19,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:37:19,593 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] [2022-07-22 22:37:19,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:37:19,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 22:37:19,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:37:19,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:37:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2022-07-22 22:37:19,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 22:37:19,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69285666] [2022-07-22 22:37:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:37:19,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 22:37:19,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 22:37:19,822 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) [2022-07-22 22:37:19,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 22:37:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:37:23,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 5858 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 22:37:23,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:37:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 22:37:23,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:37:23,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 22:37:23,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69285666] [2022-07-22 22:37:23,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69285666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:37:23,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:37:23,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:37:23,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038306653] [2022-07-22 22:37:23,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:37:23,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:37:23,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 22:37:23,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:37:23,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:37:23,359 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) [2022-07-22 22:37:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:37:23,542 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2022-07-22 22:37:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:37:23,543 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 [2022-07-22 22:37:23,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:37:23,545 INFO L225 Difference]: With dead ends: 185 [2022-07-22 22:37:23,545 INFO L226 Difference]: Without dead ends: 125 [2022-07-22 22:37:23,546 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 [2022-07-22 22:37:23,547 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 [2022-07-22 22:37:23,547 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] [2022-07-22 22:37:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-22 22:37:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-07-22 22:37:23,556 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) [2022-07-22 22:37:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2022-07-22 22:37:23,560 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 29 [2022-07-22 22:37:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:37:23,561 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2022-07-22 22:37:23,562 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) [2022-07-22 22:37:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2022-07-22 22:37:23,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 22:37:23,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:37:23,563 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] [2022-07-22 22:37:23,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 22:37:23,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 22:37:23,764 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:37:23,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:37:23,764 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2022-07-22 22:37:23,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 22:37:23,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655043887] [2022-07-22 22:37:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:37:23,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 22:37:23,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 22:37:23,772 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) [2022-07-22 22:37:23,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process