./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_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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 [2020-11-29 22:15:01,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:15:01,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:15:01,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:15:01,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:15:01,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:15:01,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:15:01,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:15:01,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:15:01,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:15:01,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:15:01,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:15:01,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:15:01,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:15:01,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:15:01,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:15:01,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:15:01,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:15:01,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:15:01,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:15:01,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:15:01,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:15:01,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:15:01,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:15:01,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:15:01,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:15:01,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:15:01,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:15:01,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:15:01,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:15:01,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:15:01,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:15:01,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:15:01,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:15:01,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:15:01,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:15:01,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:15:01,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:15:01,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:15:01,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:15:01,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:15:01,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-11-29 22:15:01,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:15:01,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:15:01,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:15:01,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:15:01,692 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:15:01,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:15:01,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:15:01,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:15:01,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:15:01,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:15:01,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:15:01,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:15:01,695 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:15:01,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:15:01,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:15:01,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:15:01,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:15:01,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:15:01,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:15:01,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:15:01,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:15:01,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:15:01,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:15:01,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:15:01,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:15:01,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:15:01,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:15:01,699 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_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2020-11-29 22:15:02,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:15:02,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:15:02,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:15:02,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:15:02,089 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:15:02,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-29 22:15:02,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/c366a9159/6e6401c70f0f4debb81dc04bead2da3f/FLAG7fce7ff8d [2020-11-29 22:15:03,059 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:15:03,061 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-29 22:15:03,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/c366a9159/6e6401c70f0f4debb81dc04bead2da3f/FLAG7fce7ff8d [2020-11-29 22:15:03,566 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/c366a9159/6e6401c70f0f4debb81dc04bead2da3f [2020-11-29 22:15:03,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:15:03,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:15:03,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:15:03,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:15:03,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:15:03,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:15:03" (1/1) ... [2020-11-29 22:15:03,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29210f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:03, skipping insertion in model container [2020-11-29 22:15:03,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:15:03" (1/1) ... [2020-11-29 22:15:03,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:15:03,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:15:04,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:15:04,992 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:15:05,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:15:05,509 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:15:05,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05 WrapperNode [2020-11-29 22:15:05,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:15:05,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:15:05,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:15:05,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:15:05,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:15:05,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:15:05,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:15:05,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:15:05,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... [2020-11-29 22:15:05,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:15:05,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:15:05,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:15:05,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:15:05,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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 [2020-11-29 22:15:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:15:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:15:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 22:15:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:15:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 22:15:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:15:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 22:15:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:15:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:15:05,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:15:07,130 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:15:07,131 INFO L298 CfgBuilder]: Removed 111 assume(true) statements. [2020-11-29 22:15:07,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:07 BoogieIcfgContainer [2020-11-29 22:15:07,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:15:07,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:15:07,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:15:07,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:15:07,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:15:03" (1/3) ... [2020-11-29 22:15:07,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7264535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:15:07, skipping insertion in model container [2020-11-29 22:15:07,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:05" (2/3) ... [2020-11-29 22:15:07,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7264535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:15:07, skipping insertion in model container [2020-11-29 22:15:07,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:07" (3/3) ... [2020-11-29 22:15:07,144 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-29 22:15:07,155 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:15:07,159 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 22:15:07,172 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 22:15:07,208 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:15:07,208 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:15:07,208 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:15:07,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:15:07,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:15:07,209 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:15:07,209 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:15:07,209 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:15:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-29 22:15:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:15:07,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:07,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:07,235 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:07,241 INFO L82 PathProgramCache]: Analyzing trace with hash -627697685, now seen corresponding path program 1 times [2020-11-29 22:15:07,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:07,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126593803] [2020-11-29 22:15:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:15:07,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126593803] [2020-11-29 22:15:07,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:07,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:15:07,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577615068] [2020-11-29 22:15:07,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:07,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:07,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:07,728 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-11-29 22:15:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:07,813 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2020-11-29 22:15:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:07,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-29 22:15:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:07,830 INFO L225 Difference]: With dead ends: 245 [2020-11-29 22:15:07,833 INFO L226 Difference]: Without dead ends: 152 [2020-11-29 22:15:07,837 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 [2020-11-29 22:15:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-29 22:15:07,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-29 22:15:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-29 22:15:07,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2020-11-29 22:15:07,892 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 11 [2020-11-29 22:15:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:07,893 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2020-11-29 22:15:07,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2020-11-29 22:15:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-29 22:15:07,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:07,898 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] [2020-11-29 22:15:07,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:15:07,899 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:07,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:07,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1630709566, now seen corresponding path program 1 times [2020-11-29 22:15:07,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:07,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271903038] [2020-11-29 22:15:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:15:08,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271903038] [2020-11-29 22:15:08,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:08,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:15:08,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820570739] [2020-11-29 22:15:08,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:15:08,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:08,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:15:08,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:15:08,110 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 4 states. [2020-11-29 22:15:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:08,168 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-11-29 22:15:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:15:08,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-11-29 22:15:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:08,176 INFO L225 Difference]: With dead ends: 298 [2020-11-29 22:15:08,177 INFO L226 Difference]: Without dead ends: 152 [2020-11-29 22:15:08,179 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 [2020-11-29 22:15:08,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-29 22:15:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-29 22:15:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-29 22:15:08,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2020-11-29 22:15:08,200 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2020-11-29 22:15:08,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:08,200 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2020-11-29 22:15:08,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:15:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2020-11-29 22:15:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-29 22:15:08,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:08,203 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] [2020-11-29 22:15:08,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:15:08,204 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash 336835996, now seen corresponding path program 1 times [2020-11-29 22:15:08,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:08,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930656471] [2020-11-29 22:15:08,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:15:08,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:15:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:15:08,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:15:08,729 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:15:08,730 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:15:08,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:15:08,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:08,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:08,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:15:08 BoogieIcfgContainer [2020-11-29 22:15:08,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:15:08,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:15:08,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:15:08,921 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:15:08,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:07" (3/4) ... [2020-11-29 22:15:08,924 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:15:08,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:15:08,927 INFO L168 Benchmark]: Toolchain (without parser) took 5355.48 ms. Allocated memory was 104.9 MB in the beginning and 203.4 MB in the end (delta: 98.6 MB). Free memory was 67.2 MB in the beginning and 95.3 MB in the end (delta: -28.1 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,928 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:15:08,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1934.51 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 67.0 MB in the beginning and 97.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.42 ms. Allocated memory is still 136.3 MB. Free memory was 97.6 MB in the beginning and 91.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,931 INFO L168 Benchmark]: Boogie Preprocessor took 54.17 ms. Allocated memory is still 136.3 MB. Free memory was 91.3 MB in the beginning and 87.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,933 INFO L168 Benchmark]: RCFGBuilder took 1411.42 ms. Allocated memory is still 136.3 MB. Free memory was 87.1 MB in the beginning and 89.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,939 INFO L168 Benchmark]: TraceAbstraction took 1782.84 ms. Allocated memory was 136.3 MB in the beginning and 203.4 MB in the end (delta: 67.1 MB). Free memory was 89.4 MB in the beginning and 96.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,940 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 203.4 MB. Free memory was 96.4 MB in the beginning and 95.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:08,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1934.51 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 67.0 MB in the beginning and 97.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 155.42 ms. Allocated memory is still 136.3 MB. Free memory was 97.6 MB in the beginning and 91.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.17 ms. Allocated memory is still 136.3 MB. Free memory was 91.3 MB in the beginning and 87.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1411.42 ms. Allocated memory is still 136.3 MB. Free memory was 87.1 MB in the beginning and 89.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1782.84 ms. Allocated memory was 136.3 MB in the beginning and 203.4 MB in the end (delta: 67.1 MB). Free memory was 89.4 MB in the beginning and 96.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.83 ms. Allocated memory is still 203.4 MB. Free memory was 96.4 MB in the beginning and 95.3 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!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!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!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!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: 1.5s, 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, 0.4s SatisfiabilityAnalysisTime, 0.3s 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 [2020-11-29 22:15:11,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:15:11,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:15:11,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:15:11,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:15:11,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:15:11,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:15:11,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:15:11,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:15:11,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:15:11,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:15:11,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:15:11,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:15:11,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:15:11,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:15:11,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:15:11,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:15:11,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:15:11,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:15:11,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:15:11,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:15:11,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:15:11,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:15:11,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:15:11,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:15:11,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:15:11,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:15:11,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:15:11,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:15:11,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:15:11,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:15:11,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:15:11,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:15:11,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:15:11,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:15:11,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:15:11,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:15:11,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:15:11,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:15:11,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:15:11,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:15:11,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-11-29 22:15:11,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:15:11,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:15:11,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:15:11,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:15:11,903 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:15:11,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:15:11,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:15:11,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:15:11,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:15:11,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:15:11,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:15:11,905 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:15:11,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:15:11,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:15:11,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:15:11,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:15:11,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:15:11,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:15:11,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:15:11,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:15:11,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:15:11,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:15:11,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:15:11,908 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:15:11,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:15:11,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:15:11,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:15:11,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:15:11,909 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2020-11-29 22:15:11,909 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_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2020-11-29 22:15:12,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:15:12,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:15:12,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:15:12,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:15:12,344 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:15:12,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-29 22:15:12,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/2eee88228/bef5fbba260e4c6da3d765a2e8e52c57/FLAGf7dc17714 [2020-11-29 22:15:13,242 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:15:13,243 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-29 22:15:13,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/2eee88228/bef5fbba260e4c6da3d765a2e8e52c57/FLAGf7dc17714 [2020-11-29 22:15:13,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/bin/uautomizer/data/2eee88228/bef5fbba260e4c6da3d765a2e8e52c57 [2020-11-29 22:15:13,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:15:13,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:15:13,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:15:13,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:15:13,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:15:13,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:15:13" (1/1) ... [2020-11-29 22:15:13,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6b0e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:13, skipping insertion in model container [2020-11-29 22:15:13,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:15:13" (1/1) ... [2020-11-29 22:15:13,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:15:13,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:15:14,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:15:14,666 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:15:15,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:15:15,180 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:15:15,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15 WrapperNode [2020-11-29 22:15:15,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:15:15,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:15:15,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:15:15,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:15:15,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:15:15,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:15:15,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:15:15,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:15:15,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... [2020-11-29 22:15:15,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:15:15,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:15:15,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:15:15,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:15:15,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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 [2020-11-29 22:15:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-29 22:15:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2020-11-29 22:15:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2020-11-29 22:15:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 22:15:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:15:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 22:15:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-29 22:15:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2020-11-29 22:15:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:15:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 22:15:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 22:15:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 22:15:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-11-29 22:15:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:15:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:15:17,222 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:15:17,222 INFO L298 CfgBuilder]: Removed 111 assume(true) statements. [2020-11-29 22:15:17,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:17 BoogieIcfgContainer [2020-11-29 22:15:17,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:15:17,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:15:17,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:15:17,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:15:17,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:15:13" (1/3) ... [2020-11-29 22:15:17,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6775ca43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:15:17, skipping insertion in model container [2020-11-29 22:15:17,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:15" (2/3) ... [2020-11-29 22:15:17,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6775ca43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:15:17, skipping insertion in model container [2020-11-29 22:15:17,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:17" (3/3) ... [2020-11-29 22:15:17,237 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2020-11-29 22:15:17,250 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:15:17,256 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 22:15:17,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 22:15:17,319 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:15:17,319 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:15:17,320 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:15:17,320 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:15:17,320 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:15:17,320 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:15:17,320 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:15:17,321 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:15:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-29 22:15:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:15:17,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:17,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:17,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:17,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:17,356 INFO L82 PathProgramCache]: Analyzing trace with hash -627697685, now seen corresponding path program 1 times [2020-11-29 22:15:17,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:15:17,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231768426] [2020-11-29 22:15:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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 [2020-11-29 22:15:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:17,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:15:17,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:15:17,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:15:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:15:17,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231768426] [2020-11-29 22:15:17,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:17,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 22:15:17,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450155739] [2020-11-29 22:15:17,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:17,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:15:17,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:17,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:17,767 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-11-29 22:15:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:17,848 INFO L93 Difference]: Finished difference Result 245 states and 321 transitions. [2020-11-29 22:15:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:17,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-29 22:15:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:17,864 INFO L225 Difference]: With dead ends: 245 [2020-11-29 22:15:17,865 INFO L226 Difference]: Without dead ends: 152 [2020-11-29 22:15:17,868 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 [2020-11-29 22:15:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-29 22:15:17,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-29 22:15:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-29 22:15:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2020-11-29 22:15:17,945 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 11 [2020-11-29 22:15:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:17,946 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2020-11-29 22:15:17,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2020-11-29 22:15:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-29 22:15:17,950 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:17,950 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] [2020-11-29 22:15:18,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 22:15:18,167 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:18,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:18,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1630709566, now seen corresponding path program 1 times [2020-11-29 22:15:18,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:15:18,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046924097] [2020-11-29 22:15:18,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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 [2020-11-29 22:15:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:18,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:15:18,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:15:18,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:15:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:15:18,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046924097] [2020-11-29 22:15:18,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:18,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 22:15:18,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505700135] [2020-11-29 22:15:18,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:15:18,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:15:18,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:15:18,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:15:18,748 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 6 states. [2020-11-29 22:15:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:18,812 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-11-29 22:15:18,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:15:18,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-11-29 22:15:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:18,822 INFO L225 Difference]: With dead ends: 298 [2020-11-29 22:15:18,822 INFO L226 Difference]: Without dead ends: 152 [2020-11-29 22:15:18,825 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 [2020-11-29 22:15:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-11-29 22:15:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-11-29 22:15:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-29 22:15:18,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2020-11-29 22:15:18,851 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 42 [2020-11-29 22:15:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:18,854 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2020-11-29 22:15:18,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:15:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2020-11-29 22:15:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-29 22:15:18,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:18,861 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] [2020-11-29 22:15:19,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 22:15:19,077 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:19,078 INFO L82 PathProgramCache]: Analyzing trace with hash 336835996, now seen corresponding path program 1 times [2020-11-29 22:15:19,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:15:19,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187869217] [2020-11-29 22:15:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d59cc55b-ea36-40ae-87fc-4dc8eb6aa7e5/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 [2020-11-29 22:15:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:15:20,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:15:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:15:21,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:15:21,542 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 22:15:21,542 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:15:21,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 22:15:21,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!vendor [2020-11-29 22:15:21,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~__mod_virtio_device_table~0!device [2020-11-29 22:15:21,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:15:21 BoogieIcfgContainer [2020-11-29 22:15:21,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:15:21,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:15:21,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:15:21,917 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:15:21,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:17" (3/4) ... [2020-11-29 22:15:21,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:15:21,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:15:21,925 INFO L168 Benchmark]: Toolchain (without parser) took 8599.03 ms. Allocated memory was 48.2 MB in the beginning and 142.6 MB in the end (delta: 94.4 MB). Free memory was 30.7 MB in the beginning and 51.7 MB in the end (delta: -21.0 MB). Peak memory consumption was 74.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:21,926 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:15:21,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1862.37 ms. Allocated memory was 48.2 MB in the beginning and 81.8 MB in the end (delta: 33.6 MB). Free memory was 30.5 MB in the beginning and 49.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:21,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 213.78 ms. Allocated memory is still 81.8 MB. Free memory was 49.8 MB in the beginning and 44.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:21,928 INFO L168 Benchmark]: Boogie Preprocessor took 123.76 ms. Allocated memory is still 81.8 MB. Free memory was 44.4 MB in the beginning and 39.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:21,929 INFO L168 Benchmark]: RCFGBuilder took 1697.39 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 39.8 MB in the beginning and 63.8 MB in the end (delta: -24.0 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:21,930 INFO L168 Benchmark]: TraceAbstraction took 4686.75 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 63.8 MB in the beginning and 51.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:21,930 INFO L168 Benchmark]: Witness Printer took 6.28 ms. Allocated memory is still 142.6 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:15:21,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1862.37 ms. Allocated memory was 48.2 MB in the beginning and 81.8 MB in the end (delta: 33.6 MB). Free memory was 30.5 MB in the beginning and 49.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 213.78 ms. Allocated memory is still 81.8 MB. Free memory was 49.8 MB in the beginning and 44.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.76 ms. Allocated memory is still 81.8 MB. Free memory was 44.4 MB in the beginning and 39.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1697.39 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 39.8 MB in the beginning and 63.8 MB in the end (delta: -24.0 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4686.75 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 63.8 MB in the beginning and 51.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.28 ms. Allocated memory is still 142.6 MB. Free memory is still 51.7 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!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!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!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!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 * 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: 4.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, 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, 1.3s 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...