./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f04f938fee3705b6ab112999ad746b29d3f93a10 ........................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f04f938fee3705b6ab112999ad746b29d3f93a10 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:30:22,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:30:22,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:30:22,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:30:22,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:30:22,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:30:22,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:30:22,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:30:22,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:30:22,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:30:22,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:30:22,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:30:22,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:30:22,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:30:22,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:30:22,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:30:22,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:30:22,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:30:22,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:30:22,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:30:22,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:30:22,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:30:22,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:30:22,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:30:22,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:30:22,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:30:22,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:30:22,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:30:22,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:30:22,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:30:22,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:30:22,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:30:22,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:30:22,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:30:22,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:30:22,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:30:22,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:30:22,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:30:22,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:30:22,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:30:22,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:30:22,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-13 07:30:22,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:30:22,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:30:22,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:30:22,941 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:30:22,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:30:22,942 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:30:22,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:30:22,942 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:30:22,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:30:22,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:30:22,943 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:30:22,944 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:30:22,944 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:30:22,944 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:30:22,945 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:30:22,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:30:22,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:30:22,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:30:22,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:30:22,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:30:22,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:30:22,947 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:30:22,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:30:22,948 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:30:22,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:30:22,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:30:22,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:30:22,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:22,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:30:22,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:30:22,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:30:22,951 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:30:22,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:30:22,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:30:22,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:30:22,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:30:22,952 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2021-10-13 07:30:23,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:30:23,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:30:23,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:30:23,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:30:23,310 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:30:23,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-13 07:30:23,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/2e90a5d87/5fead54369494a58b062347450005cb7/FLAG07a224e57 [2021-10-13 07:30:24,438 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:30:24,440 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-13 07:30:24,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/2e90a5d87/5fead54369494a58b062347450005cb7/FLAG07a224e57 [2021-10-13 07:30:24,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/2e90a5d87/5fead54369494a58b062347450005cb7 [2021-10-13 07:30:24,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:30:24,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:30:24,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:24,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:30:24,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:30:24,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:24" (1/1) ... [2021-10-13 07:30:24,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b6460b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:24, skipping insertion in model container [2021-10-13 07:30:24,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:24" (1/1) ... [2021-10-13 07:30:24,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:30:24,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:30:26,120 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1038) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:946) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1415) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1359) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:30:26,130 INFO L168 Benchmark]: Toolchain (without parser) took 1275.72 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 74.0 MB in the beginning and 108.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:26,132 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 76.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:26,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1272.92 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 74.0 MB in the beginning and 108.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:26,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 76.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1272.92 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 74.0 MB in the beginning and 108.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:193) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:30:28,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:30:28,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:30:28,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:30:28,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:30:28,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:30:28,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:30:28,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:30:28,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:30:28,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:30:28,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:30:28,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:30:28,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:30:28,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:30:28,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:30:28,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:30:28,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:30:28,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:30:28,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:30:28,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:30:29,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:30:29,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:30:29,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:30:29,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:30:29,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:30:29,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:30:29,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:30:29,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:30:29,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:30:29,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:30:29,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:30:29,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:30:29,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:30:29,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:30:29,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:30:29,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:30:29,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:30:29,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:30:29,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:30:29,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:30:29,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:30:29,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-10-13 07:30:29,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:30:29,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:30:29,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:30:29,064 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:30:29,065 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:30:29,065 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:30:29,065 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:30:29,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:30:29,066 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:30:29,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:30:29,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:30:29,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:30:29,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:30:29,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:30:29,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:30:29,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:30:29,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:30:29,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:30:29,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:30:29,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:30:29,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:30:29,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:30:29,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:30:29,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:29,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:30:29,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:30:29,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:30:29,072 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:30:29,073 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:30:29,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:30:29,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:30:29,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:30:29,074 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2021-10-13 07:30:29,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:30:29,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:30:29,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:30:29,579 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:30:29,580 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:30:29,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-13 07:30:29,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/5673dcfb8/87c71a9cfb954eeca019f72d73eb3289/FLAG88e000b67 [2021-10-13 07:30:30,837 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:30:30,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-13 07:30:30,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/5673dcfb8/87c71a9cfb954eeca019f72d73eb3289/FLAG88e000b67 [2021-10-13 07:30:31,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/data/5673dcfb8/87c71a9cfb954eeca019f72d73eb3289 [2021-10-13 07:30:31,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:30:31,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:30:31,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:31,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:30:31,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:30:31,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:31" (1/1) ... [2021-10-13 07:30:31,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2254c3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:31, skipping insertion in model container [2021-10-13 07:30:31,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:31" (1/1) ... [2021-10-13 07:30:31,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:30:31,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:30:32,567 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-13 07:30:32,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:32,624 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 07:30:32,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:30:32,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-13 07:30:32,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:32,953 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:30:33,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-13 07:30:33,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:33,489 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:30:33,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33 WrapperNode [2021-10-13 07:30:33,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:33,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:30:33,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:30:33,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:30:33,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:30:33,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:30:33,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:30:33,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:30:33,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:30:33,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:30:33,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:30:33,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:30:33,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (1/1) ... [2021-10-13 07:30:33,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:33,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:30:33,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:30:33,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:30:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-13 07:30:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-13 07:30:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-13 07:30:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 07:30:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:30:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 07:30:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-13 07:30:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-10-13 07:30:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:30:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:30:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 07:30:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:30:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-13 07:30:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:30:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:30:35,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:30:35,821 INFO L299 CfgBuilder]: Removed 107 assume(true) statements. [2021-10-13 07:30:35,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:30:35 BoogieIcfgContainer [2021-10-13 07:30:35,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:30:35,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:30:35,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:30:35,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:30:35,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:30:31" (1/3) ... [2021-10-13 07:30:35,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9c2673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:30:35, skipping insertion in model container [2021-10-13 07:30:35,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:33" (2/3) ... [2021-10-13 07:30:35,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9c2673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:30:35, skipping insertion in model container [2021-10-13 07:30:35,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:30:35" (3/3) ... [2021-10-13 07:30:35,834 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-13 07:30:35,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:30:35,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:30:35,903 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:30:35,910 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:30:35,911 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 07:30:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 87 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:30:35,948 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:30:35,948 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:30:35,949 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:30:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:30:35,962 INFO L82 PathProgramCache]: Analyzing trace with hash -653166678, now seen corresponding path program 1 times [2021-10-13 07:30:35,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:30:35,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725839699] [2021-10-13 07:30:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:30:35,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:30:35,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:30:35,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:30:36,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:30:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:30:36,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:30:36,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:30:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:30:36,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:30:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:30:36,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:30:36,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725839699] [2021-10-13 07:30:36,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725839699] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:30:36,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:30:36,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:30:36,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748261119] [2021-10-13 07:30:36,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:30:36,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:30:36,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:30:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:30:36,595 INFO L87 Difference]: Start difference. First operand has 88 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 87 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:30:36,663 INFO L93 Difference]: Finished difference Result 235 states and 307 transitions. [2021-10-13 07:30:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:30:36,665 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 07:30:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:30:36,679 INFO L225 Difference]: With dead ends: 235 [2021-10-13 07:30:36,679 INFO L226 Difference]: Without dead ends: 148 [2021-10-13 07:30:36,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:30:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-13 07:30:36,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-13 07:30:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.273972602739726) internal successors, (186), 147 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-10-13 07:30:36,763 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 9 [2021-10-13 07:30:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:30:36,764 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-10-13 07:30:36,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:36,765 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-10-13 07:30:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 07:30:36,772 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:30:36,773 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:30:36,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:36,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:30:36,999 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:30:37,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:30:37,000 INFO L82 PathProgramCache]: Analyzing trace with hash 950528437, now seen corresponding path program 1 times [2021-10-13 07:30:37,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:30:37,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795534813] [2021-10-13 07:30:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:30:37,003 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:30:37,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:30:37,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:30:37,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:30:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:30:37,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:30:37,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:30:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:30:37,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:30:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:30:37,863 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:30:37,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795534813] [2021-10-13 07:30:37,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795534813] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:30:37,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:30:37,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:30:37,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261283143] [2021-10-13 07:30:37,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:30:37,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:30:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:30:37,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:30:37,870 INFO L87 Difference]: Start difference. First operand 148 states and 186 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:30:37,927 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2021-10-13 07:30:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:30:37,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-13 07:30:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:30:37,930 INFO L225 Difference]: With dead ends: 290 [2021-10-13 07:30:37,931 INFO L226 Difference]: Without dead ends: 148 [2021-10-13 07:30:37,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:30:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-13 07:30:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-13 07:30:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 147 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2021-10-13 07:30:37,956 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 40 [2021-10-13 07:30:37,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:30:37,957 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2021-10-13 07:30:37,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:37,958 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2021-10-13 07:30:37,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 07:30:37,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:30:37,961 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:30:37,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 07:30:38,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:30:38,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:30:38,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:30:38,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1298860141, now seen corresponding path program 1 times [2021-10-13 07:30:38,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:30:38,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628334686] [2021-10-13 07:30:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:30:38,182 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:30:38,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:30:38,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:30:38,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:30:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:30:39,792 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:30:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:30:41,230 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 07:30:41,230 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:30:41,232 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:41,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:41,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:41,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:30:41,467 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:30:41,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:30:41 BoogieIcfgContainer [2021-10-13 07:30:41,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:30:41,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:30:41,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:30:41,618 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:30:41,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:30:35" (3/4) ... [2021-10-13 07:30:41,622 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:30:41,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:30:41,624 INFO L168 Benchmark]: Toolchain (without parser) took 10360.07 ms. Allocated memory was 50.3 MB in the beginning and 216.0 MB in the end (delta: 165.7 MB). Free memory was 32.5 MB in the beginning and 152.5 MB in the end (delta: -119.9 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:41,625 INFO L168 Benchmark]: CDTParser took 7.89 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:41,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2225.72 ms. Allocated memory was 50.3 MB in the beginning and 109.1 MB in the end (delta: 58.7 MB). Free memory was 32.4 MB in the beginning and 69.9 MB in the end (delta: -37.5 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:41,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 159.74 ms. Allocated memory is still 109.1 MB. Free memory was 69.9 MB in the beginning and 64.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:41,628 INFO L168 Benchmark]: Boogie Preprocessor took 123.80 ms. Allocated memory is still 109.1 MB. Free memory was 64.1 MB in the beginning and 59.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:41,629 INFO L168 Benchmark]: RCFGBuilder took 2039.32 ms. Allocated memory is still 109.1 MB. Free memory was 59.9 MB in the beginning and 64.0 MB in the end (delta: -4.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:41,630 INFO L168 Benchmark]: TraceAbstraction took 5790.18 ms. Allocated memory was 109.1 MB in the beginning and 216.0 MB in the end (delta: 107.0 MB). Free memory was 63.3 MB in the beginning and 153.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 66.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:41,631 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 216.0 MB. Free memory was 153.5 MB in the beginning and 152.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:41,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 7.89 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2225.72 ms. Allocated memory was 50.3 MB in the beginning and 109.1 MB in the end (delta: 58.7 MB). Free memory was 32.4 MB in the beginning and 69.9 MB in the end (delta: -37.5 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 159.74 ms. Allocated memory is still 109.1 MB. Free memory was 69.9 MB in the beginning and 64.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.80 ms. Allocated memory is still 109.1 MB. Free memory was 64.1 MB in the beginning and 59.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2039.32 ms. Allocated memory is still 109.1 MB. Free memory was 59.9 MB in the beginning and 64.0 MB in the end (delta: -4.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5790.18 ms. Allocated memory was 109.1 MB in the beginning and 216.0 MB in the end (delta: 107.0 MB). Free memory was 63.3 MB in the beginning and 153.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 66.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.28 ms. Allocated memory is still 216.0 MB. Free memory was 153.5 MB in the beginning and 152.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4185. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4210] struct block_device *var_group1 ; [L4211] fmode_t var_virtblk_ioctl_5_p1 ; [L4212] unsigned int var_virtblk_ioctl_5_p2 ; [L4213] unsigned long var_virtblk_ioctl_5_p3 ; [L4214] struct hd_geometry *var_group2 ; [L4215] int tmp ; [L4216] int tmp___0 ; [L4217] int tmp___1 ; [L4219] LDV_IN_INTERRUPT = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4183] int tmp ; [L4185] CALL, EXPR register_blkdev(0U, "virtblk") [L4531] return __VERIFIER_nondet_int(); [L4185] major = register_blkdev(0U, "virtblk") [L4186] COND FALSE !(major < 0) [L4535] return __VERIFIER_nondet_int(); [L4190] tmp = register_virtio_driver(& virtio_blk) [L4191] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4229] tmp___0 = __VERIFIER_nondet_int() [L4231] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L3912] struct gendisk *disk ; [L3913] struct virtio_blk *vblk ; [L3914] void *usr_data ; [L3915] char id_str[20U] ; [L3916] int err ; [L3917] int tmp ; [L3918] bool tmp___0 ; [L3919] int tmp___1 ; [L3920] int tmp___2 ; [L3922] EXPR bdev->bd_disk [L3922] disk = bdev->bd_disk [L3923] EXPR disk->private_data [L3923] vblk = (struct virtio_blk *)disk->private_data [L3924] COND TRUE cmd == 1447184708U [L3925] usr_data = (void *)data [L3879] struct virtio_blk *vblk ; [L3880] struct request *req ; [L3881] struct bio *bio ; [L3882] long tmp ; [L3883] long tmp___0 ; [L3884] long tmp___1 ; [L3885] long tmp___2 ; [L3886] int tmp___3 ; [L3888] EXPR disk->private_data [L3888] vblk = (struct virtio_blk *)disk->private_data [L3889] EXPR vblk->disk [L3889] EXPR (vblk->disk)->queue [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4427] return ldv_malloc(sizeof(struct bio)); [L3889] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4274] long tmp ; [L4307] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L3890] tmp___0 = IS_ERR((void const *)bio) [L3891] COND FALSE !(tmp___0 != 0L) [L3896] EXPR vblk->disk [L3896] EXPR (vblk->disk)->queue [L4283] ldv_func_ret_type___3 ldv_func_res ; [L4284] struct request *tmp ; [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4443] return ldv_malloc(sizeof(struct request)); [L4286] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4287] ldv_func_res = tmp [L4351] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4357] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4358] ldv_blk_rq = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4289] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L3896] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4274] long tmp ; [L4307] return ((unsigned long )ptr > 2012UL); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L3897] tmp___2 = IS_ERR((void const *)req) [L3898] COND FALSE !(tmp___2 != 0L) [L3904] req->cmd_type = 7 [L3905] EXPR vblk->disk [L3905] EXPR (vblk->disk)->queue [L3905] EXPR vblk->disk [L4437] return __VERIFIER_nondet_int(); [L3905] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3906] return (tmp___3); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L3926] err = virtblk_get_id(disk, (char *)(& id_str)) [L3927] COND FALSE !(err == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L3935] return (err); [L3935] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] [L4295] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={-1342177266:0}, id_table={-2147483519:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483510:0}, virtio_blk={-2147483516:0}] - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5563.9ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 31.3ms, AutomataDifference: 167.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 222 SDtfs, 98 SDslu, 389 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 85.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 137.3ms SsaConstructionTime, 1828.0ms SatisfiabilityAnalysisTime, 617.5ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 4 NumberOfNonLiveVariables, 611 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 07:30:41,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40cb3bc1-51b1-43ac-a1d9-a221700f2fc2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...