./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer --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 f04f938fee3705b6ab112999ad746b29d3f93a10 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer --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 f04f938fee3705b6ab112999ad746b29d3f93a10 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:20,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:20,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:20,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:20,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:20,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:20,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:20,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:20,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:20,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:20,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:20,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:20,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:20,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:20,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:20,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:20,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:20,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:20,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:20,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:20,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:20,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:20,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:20,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:20,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:20,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:20,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:20,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:20,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:20,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:20,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:20,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:20,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:20,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:20,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:20,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:20,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:20,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:20,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:20,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:20,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:20,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-11-28 03:15:21,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:21,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:21,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:21,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:21,013 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:21,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:21,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:21,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:21,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:21,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:21,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:21,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:21,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:21,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:21,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:21,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:21,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:21,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:21,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:21,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:21,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:21,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:21,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:21,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:15:21,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:21,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:21,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:15:21,020 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2020-11-28 03:15:21,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:21,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:21,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:21,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:21,269 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:21,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-28 03:15:21,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/1c098efca/e38548184eb0476ba5fcb1b7d8aacc6e/FLAGd596d4818 [2020-11-28 03:15:22,121 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:22,122 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-28 03:15:22,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/1c098efca/e38548184eb0476ba5fcb1b7d8aacc6e/FLAGd596d4818 [2020-11-28 03:15:22,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/1c098efca/e38548184eb0476ba5fcb1b7d8aacc6e [2020-11-28 03:15:22,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:22,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:22,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:22,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:22,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:22,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:22" (1/1) ... [2020-11-28 03:15:22,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42962a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:22, skipping insertion in model container [2020-11-28 03:15:22,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:22" (1/1) ... [2020-11-28 03:15:22,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:22,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:23,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:23,491 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:23,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:23,966 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:23,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23 WrapperNode [2020-11-28 03:15:23,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:23,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:23,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:23,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:23,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:24,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:24,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:24,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:24,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... [2020-11-28 03:15:24,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:24,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:24,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:24,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:24,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:15:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:15:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:15:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:15:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:15:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 03:15:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:25,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:25,497 INFO L298 CfgBuilder]: Removed 111 assume(true) statements. [2020-11-28 03:15:25,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:25 BoogieIcfgContainer [2020-11-28 03:15:25,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:25,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:25,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:25,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:25,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:22" (1/3) ... [2020-11-28 03:15:25,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456e3103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:25, skipping insertion in model container [2020-11-28 03:15:25,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:23" (2/3) ... [2020-11-28 03:15:25,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456e3103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:25, skipping insertion in model container [2020-11-28 03:15:25,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:25" (3/3) ... [2020-11-28 03:15:25,509 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-28 03:15:25,520 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:25,525 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:15:25,538 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:15:25,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:25,564 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:25,565 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:25,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:25,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:25,565 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:25,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:25,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-28 03:15:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:25,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:25,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:25,585 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:25,591 INFO L82 PathProgramCache]: Analyzing trace with hash -627697685, now seen corresponding path program 1 times [2020-11-28 03:15:25,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:25,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625152085] [2020-11-28 03:15:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:26,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625152085] [2020-11-28 03:15:26,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:26,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:15:26,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273055641] [2020-11-28 03:15:26,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:26,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:26,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:26,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:26,036 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-11-28 03:15:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:26,116 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2020-11-28 03:15:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:26,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 03:15:26,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:26,129 INFO L225 Difference]: With dead ends: 245 [2020-11-28 03:15:26,129 INFO L226 Difference]: Without dead ends: 152 [2020-11-28 03:15:26,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-28 03:15:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-28 03:15:26,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-28 03:15:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2020-11-28 03:15:26,242 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 11 [2020-11-28 03:15:26,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:26,242 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2020-11-28 03:15:26,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:26,243 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2020-11-28 03:15:26,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-28 03:15:26,247 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:26,247 INFO L422 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, 1] [2020-11-28 03:15:26,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:26,248 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:26,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1630709566, now seen corresponding path program 1 times [2020-11-28 03:15:26,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:26,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927142279] [2020-11-28 03:15:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:15:26,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927142279] [2020-11-28 03:15:26,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:26,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:15:26,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923560094] [2020-11-28 03:15:26,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:26,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:26,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:26,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:26,432 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 4 states. [2020-11-28 03:15:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:26,475 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-11-28 03:15:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:15:26,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-11-28 03:15:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:26,477 INFO L225 Difference]: With dead ends: 298 [2020-11-28 03:15:26,477 INFO L226 Difference]: Without dead ends: 152 [2020-11-28 03:15:26,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:26,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-28 03:15:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-28 03:15:26,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-28 03:15:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2020-11-28 03:15:26,502 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2020-11-28 03:15:26,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:26,503 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2020-11-28 03:15:26,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2020-11-28 03:15:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-28 03:15:26,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:26,510 INFO L422 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, 1, 1] [2020-11-28 03:15:26,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:15:26,511 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash 336835996, now seen corresponding path program 1 times [2020-11-28 03:15:26,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:26,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295061395] [2020-11-28 03:15:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:26,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:26,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:26,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:26,920 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:26,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:15:27,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,048 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,067 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,067 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:27,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:27,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:27 BoogieIcfgContainer [2020-11-28 03:15:27,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:27,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:27,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:27,094 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:27,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:25" (3/4) ... [2020-11-28 03:15:27,097 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:15:27,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:27,099 INFO L168 Benchmark]: Toolchain (without parser) took 4879.63 ms. Allocated memory was 83.9 MB in the beginning and 201.3 MB in the end (delta: 117.4 MB). Free memory was 48.9 MB in the beginning and 81.4 MB in the end (delta: -32.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,100 INFO L168 Benchmark]: CDTParser took 1.30 ms. Allocated memory is still 83.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:27,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1746.35 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 48.7 MB in the beginning and 55.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 40.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 167.95 ms. Allocated memory is still 117.4 MB. Free memory was 55.1 MB in the beginning and 49.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,103 INFO L168 Benchmark]: Boogie Preprocessor took 116.83 ms. Allocated memory is still 117.4 MB. Free memory was 49.4 MB in the beginning and 76.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,103 INFO L168 Benchmark]: RCFGBuilder took 1244.69 ms. Allocated memory was 117.4 MB in the beginning and 201.3 MB in the end (delta: 83.9 MB). Free memory was 75.9 MB in the beginning and 115.7 MB in the end (delta: -39.9 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,104 INFO L168 Benchmark]: TraceAbstraction took 1591.43 ms. Allocated memory is still 201.3 MB. Free memory was 114.7 MB in the beginning and 82.4 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,105 INFO L168 Benchmark]: Witness Printer took 4.40 ms. Allocated memory is still 201.3 MB. Free memory was 82.4 MB in the beginning and 81.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:27,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30 ms. Allocated memory is still 83.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1746.35 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 48.7 MB in the beginning and 55.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 40.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 167.95 ms. Allocated memory is still 117.4 MB. Free memory was 55.1 MB in the beginning and 49.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 116.83 ms. Allocated memory is still 117.4 MB. Free memory was 49.4 MB in the beginning and 76.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1244.69 ms. Allocated memory was 117.4 MB in the beginning and 201.3 MB in the end (delta: 83.9 MB). Free memory was 75.9 MB in the beginning and 115.7 MB in the end (delta: -39.9 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1591.43 ms. Allocated memory is still 201.3 MB. Free memory was 114.7 MB in the beginning and 82.4 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.40 ms. Allocated memory is still 201.3 MB. Free memory was 82.4 MB in the beginning and 81.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() 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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4229] tmp___0 = __VERIFIER_nondet_int() [L4231] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4289] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L3935] return (err); [L3935] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [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={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L12] COND FALSE !(0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] [L12] __assert_fail ("0", "m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551616:18446744073709551614}, features={25:0}, id_table={15:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={21:0}, virtio_blk={35:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 230 SDtfs, 98 SDslu, 300 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 2249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:29,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:29,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:29,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:29,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:29,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:29,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:29,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:29,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:29,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:29,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:29,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:29,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:29,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:29,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:29,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:29,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:29,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:29,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:29,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:29,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:29,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:29,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:29,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:29,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:29,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:29,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:29,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:29,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:29,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:29,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:29,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:29,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:29,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:29,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:29,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:29,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:29,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:29,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:29,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:29,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:29,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-11-28 03:15:29,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:29,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:29,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:29,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:29,856 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:29,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:29,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:29,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:29,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:29,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:29,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:15:29,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:15:29,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:29,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:29,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:29,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:29,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:29,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:29,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:29,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:29,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:29,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:29,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:29,861 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:15:29,861 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:15:29,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:29,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:29,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:15:29,862 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2020-11-28 03:15:29,863 INFO L138 SettingsManager]: * To the following directory=dump/ 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-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2020-11-28 03:15:30,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:30,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:30,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:30,240 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:30,240 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:30,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-28 03:15:30,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/1479c817c/9821abab6d91451ea56089c902b4c32f/FLAGf6fd3127c [2020-11-28 03:15:31,077 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:31,077 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-28 03:15:31,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/1479c817c/9821abab6d91451ea56089c902b4c32f/FLAGf6fd3127c [2020-11-28 03:15:31,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/data/1479c817c/9821abab6d91451ea56089c902b4c32f [2020-11-28 03:15:31,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:31,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:31,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:31,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:31,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:31,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:31" (1/1) ... [2020-11-28 03:15:31,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e98d05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:31, skipping insertion in model container [2020-11-28 03:15:31,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:31" (1/1) ... [2020-11-28 03:15:31,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:31,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:32,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:32,536 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:32,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:32,942 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:32,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32 WrapperNode [2020-11-28 03:15:32,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:32,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:32,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:32,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:32,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:33,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:33,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:33,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:33,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... [2020-11-28 03:15:33,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:33,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:33,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:33,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:33,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-28 03:15:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2020-11-28 03:15:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2020-11-28 03:15:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:15:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:15:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-28 03:15:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2020-11-28 03:15:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:15:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:15:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 03:15:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:15:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-11-28 03:15:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:34,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:34,853 INFO L298 CfgBuilder]: Removed 111 assume(true) statements. [2020-11-28 03:15:34,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:34 BoogieIcfgContainer [2020-11-28 03:15:34,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:34,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:34,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:34,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:34,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:31" (1/3) ... [2020-11-28 03:15:34,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc72460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:34, skipping insertion in model container [2020-11-28 03:15:34,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:32" (2/3) ... [2020-11-28 03:15:34,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc72460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:34, skipping insertion in model container [2020-11-28 03:15:34,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:34" (3/3) ... [2020-11-28 03:15:34,865 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-28 03:15:34,876 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:34,880 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:15:34,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:15:34,930 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:34,930 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:34,930 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:34,931 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:34,931 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:34,931 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:34,931 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:34,931 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-28 03:15:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:34,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:34,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:34,956 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:34,962 INFO L82 PathProgramCache]: Analyzing trace with hash -627697685, now seen corresponding path program 1 times [2020-11-28 03:15:34,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:34,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078510736] [2020-11-28 03:15:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 03:15:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:35,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:35,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:35,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:15:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:35,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078510736] [2020-11-28 03:15:35,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:35,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:15:35,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242372956] [2020-11-28 03:15:35,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:15:35,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:15:35,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:35,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:35,443 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-11-28 03:15:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:35,533 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2020-11-28 03:15:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:15:35,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 03:15:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:35,547 INFO L225 Difference]: With dead ends: 245 [2020-11-28 03:15:35,547 INFO L226 Difference]: Without dead ends: 152 [2020-11-28 03:15:35,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-28 03:15:35,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-28 03:15:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-28 03:15:35,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2020-11-28 03:15:35,602 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 11 [2020-11-28 03:15:35,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:35,602 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2020-11-28 03:15:35,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:15:35,602 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2020-11-28 03:15:35,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-28 03:15:35,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:35,605 INFO L422 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, 1] [2020-11-28 03:15:35,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:15:35,826 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:35,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1630709566, now seen corresponding path program 1 times [2020-11-28 03:15:35,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:35,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050304351] [2020-11-28 03:15:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 03:15:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:36,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:15:36,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:15:36,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:15:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:15:36,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050304351] [2020-11-28 03:15:36,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:36,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 03:15:36,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107264365] [2020-11-28 03:15:36,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:15:36,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:15:36,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:15:36,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:15:36,413 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 6 states. [2020-11-28 03:15:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:36,473 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-11-28 03:15:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:15:36,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-11-28 03:15:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:36,475 INFO L225 Difference]: With dead ends: 298 [2020-11-28 03:15:36,475 INFO L226 Difference]: Without dead ends: 152 [2020-11-28 03:15:36,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:15:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-28 03:15:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-28 03:15:36,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-28 03:15:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2020-11-28 03:15:36,515 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2020-11-28 03:15:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:36,519 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2020-11-28 03:15:36,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:15:36,519 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2020-11-28 03:15:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-28 03:15:36,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:36,522 INFO L422 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, 1, 1] [2020-11-28 03:15:36,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:15:36,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:36,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:36,738 INFO L82 PathProgramCache]: Analyzing trace with hash 336835996, now seen corresponding path program 1 times [2020-11-28 03:15:36,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:36,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491707628] [2020-11-28 03:15:36,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c697e6a-8b00-4980-a530-6c9f0c372bc9/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 03:15:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:38,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:39,042 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:15:39,042 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:39,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:15:39,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-28 03:15:39,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-28 03:15:39,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:39 BoogieIcfgContainer [2020-11-28 03:15:39,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:39,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:39,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:39,423 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:39,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:34" (3/4) ... [2020-11-28 03:15:39,427 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:15:39,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:39,429 INFO L168 Benchmark]: Toolchain (without parser) took 8259.51 ms. Allocated memory was 58.7 MB in the beginning and 186.6 MB in the end (delta: 127.9 MB). Free memory was 30.9 MB in the beginning and 115.4 MB in the end (delta: -84.4 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:39,430 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 40.3 MB in the end (delta: 25.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:39,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1773.08 ms. Allocated memory was 58.7 MB in the beginning and 125.8 MB in the end (delta: 67.1 MB). Free memory was 30.8 MB in the beginning and 65.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:39,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.54 ms. Allocated memory is still 125.8 MB. Free memory was 65.7 MB in the beginning and 60.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:39,434 INFO L168 Benchmark]: Boogie Preprocessor took 70.30 ms. Allocated memory is still 125.8 MB. Free memory was 60.0 MB in the beginning and 86.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:39,435 INFO L168 Benchmark]: RCFGBuilder took 1694.38 ms. Allocated memory is still 125.8 MB. Free memory was 86.9 MB in the beginning and 84.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:39,442 INFO L168 Benchmark]: TraceAbstraction took 4563.73 ms. Allocated memory was 125.8 MB in the beginning and 186.6 MB in the end (delta: 60.8 MB). Free memory was 83.9 MB in the beginning and 115.4 MB in the end (delta: -31.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:39,444 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 186.6 MB. Free memory is still 115.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:39,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 40.3 MB in the end (delta: 25.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1773.08 ms. Allocated memory was 58.7 MB in the beginning and 125.8 MB in the end (delta: 67.1 MB). Free memory was 30.8 MB in the beginning and 65.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 145.54 ms. Allocated memory is still 125.8 MB. Free memory was 65.7 MB in the beginning and 60.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.30 ms. Allocated memory is still 125.8 MB. Free memory was 60.0 MB in the beginning and 86.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1694.38 ms. Allocated memory is still 125.8 MB. Free memory was 86.9 MB in the beginning and 84.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4563.73 ms. Allocated memory was 125.8 MB in the beginning and 186.6 MB in the end (delta: 60.8 MB). Free memory was 83.9 MB in the beginning and 115.4 MB in the end (delta: -31.4 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.44 ms. Allocated memory is still 186.6 MB. Free memory is still 115.4 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 unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!device - GenericResult: Unfinished Backtranslation unknown boogie variable ~__mod_virtio_device_table~0!vendor * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() 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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4289] return (ldv_func_res); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L3935] return (err); [L3935] return (err); VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [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={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L12] COND FALSE !(0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] [L12] __assert_fail ("0", "m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={3:0}, id_table={536870914:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={-2147483645:0}, virtio_blk={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 230 SDtfs, 99 SDslu, 406 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 4252 SizeOfPredicates, 4 NumberOfNonLiveVariables, 531 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 Received shutdown request...